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Vulnerability Details :

CVE-2021-33907

Summary
Assigner-Zoom
Assigner Org ID-99b9af0d-a833-4a5d-9e2f-8b1324f35351
Published At-27 Sep, 2021 | 13:55
Updated At-04 Aug, 2024 | 00:05
Rejected At-
Credits

The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:Zoom
Assigner Org ID:99b9af0d-a833-4a5d-9e2f-8b1324f35351
Published At:27 Sep, 2021 | 13:55
Updated At:04 Aug, 2024 | 00:05
Rejected At:
▼CVE Numbering Authority (CNA)

The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context.

Affected Products
Vendor
n/a
Product
Zoom Client for Meetings for Windows
Versions
Affected
  • All versions of the Zoom Client for Meetings for Windows before version 5.3.0
Problem Types
TypeCWE IDDescription
textN/AImproper Verification of Crypto Signature
Type: text
CWE ID: N/A
Description: Improper Verification of Crypto Signature
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://explore.zoom.us/en/trust/security/security-bulletin/
x_refsource_MISC
Hyperlink: https://explore.zoom.us/en/trust/security/security-bulletin/
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://explore.zoom.us/en/trust/security/security-bulletin/
x_refsource_MISC
x_transferred
Hyperlink: https://explore.zoom.us/en/trust/security/security-bulletin/
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@zoom.us
Published At:27 Sep, 2021 | 14:15
Updated At:06 Oct, 2021 | 19:01

The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary2.010.0HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 2.0
Base score: 10.0
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C
CPE Matches

Zoom Communications, Inc.
zoom
>>meetings>>Versions before 5.3.0(exclusive)
cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:*
Weaknesses
CWE IDTypeSource
CWE-295Primarynvd@nist.gov
CWE ID: CWE-295
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://explore.zoom.us/en/trust/security/security-bulletin/security@zoom.us
Vendor Advisory
Hyperlink: https://explore.zoom.us/en/trust/security/security-bulletin/
Source: security@zoom.us
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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The network address administrative settings web portal for the Zoom on-premise Meeting Connector before version 4.6.360.20210325, Zoom on-premise Meeting Connector MMR before version 4.6.360.20210325, Zoom on-premise Recording Connector before version 3.8.44.20210326, Zoom on-premise Virtual Room Connector before version 4.4.6752.20210326, and Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5495.20210326 fails to validate input sent in requests to update the network configuration, which could lead to remote command injection on the on-premise image by the web portal administrators.

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Action-Not Available
Vendor-Google LLCApple Inc.Microsoft CorporationZoom Communications, Inc.Linux Kernel Organization, Inc
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Matching Score-8
Assigner-Zoom Video Communications, Inc.
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Matching Score-8
Assigner-Zoom Video Communications, Inc.
CVSS Score-9.6||CRITICAL
EPSS-1.29% / 67.20%
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7 Day CHG~0.00%
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Updated-10 Oct, 2024 | 16:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
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Action-Not Available
Vendor-Zoom Communications, Inc.
Product-virtual_desktop_infrastructurezoomZoom Desktop Client for Windows and Zoom VDI Client
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Improper Handling of Unicode Encoding
CWE ID-CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVE-2023-39216
Matching Score-8
Assigner-Zoom Video Communications, Inc.
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Matching Score-8
Assigner-Zoom Video Communications, Inc.
CVSS Score-9.6||CRITICAL
EPSS-1.06% / 60.90%
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7 Day CHG~0.00%
Published-08 Aug, 2023 | 17:48
Updated-10 Oct, 2024 | 16:22
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Improper input validation in Zoom Desktop Client for Windows before 5.14.7 may allow an unauthenticated user to enable an escalation of privilege via network access.

Action-Not Available
Vendor-Zoom Communications, Inc.
Product-zoomZoom Desktop Client for Windows
CWE ID-CWE-80
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
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Matching Score-8
Assigner-Zoom Video Communications, Inc.
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Matching Score-8
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7 Day CHG~0.00%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
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Action-Not Available
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Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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Matching Score-6
Assigner-Zoom Video Communications, Inc.
ShareView Details
Matching Score-6
Assigner-Zoom Video Communications, Inc.
CVSS Score-5.9||MEDIUM
EPSS-3.89% / 89.12%
||
7 Day CHG~0.00%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
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Action-Not Available
Vendor-Zoom Communications, Inc.
Product-meetingsZoom Client for Meetings for MacOSZoom Client for Meetings for WindowsZoom Client for Meetings for LinuxZoom Client for Meetings for iOSZoom Client for Meetings for Android
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-46788
Matching Score-6
Assigner-Zoom Communications, Inc.
ShareView Details
Matching Score-6
Assigner-Zoom Communications, Inc.
CVSS Score-7.4||HIGH
EPSS-0.24% / 14.72%
||
7 Day CHG~0.00%
Published-10 Jul, 2025 | 15:48
Updated-05 Aug, 2025 | 13:42
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
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Action-Not Available
Vendor-Zoom Communications, Inc.
Product-workplace_desktopZoom Workplace for Linux
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-30669
Matching Score-6
Assigner-Zoom Communications, Inc.
ShareView Details
Matching Score-6
Assigner-Zoom Communications, Inc.
CVSS Score-4.8||MEDIUM
EPSS-0.10% / 0.90%
||
7 Day CHG~0.00%
Published-13 Nov, 2025 | 14:49
Updated-13 Jan, 2026 | 20:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Zoom Workplace Clients - Improper Certificate Validation

Improper certificate validation in certain Zoom Clients may allow an unauthenticated user to conduct a disclosure of information via adjacent access.

Action-Not Available
Vendor-Zoom Communications, Inc.
Product-workplace_virtual_desktop_infrastructureworkplace_desktopmeeting_software_development_kitZoom Workplace Clients
CWE ID-CWE-295
Improper Certificate Validation
CVE-2022-31183
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-9.1||CRITICAL
EPSS-0.64% / 46.97%
||
7 Day CHG~0.00%
Published-01 Aug, 2022 | 19:50
Updated-22 Apr, 2025 | 17:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
mTLS client verification is skipped in fs2 on Node.js

fs2 is a compositional, streaming I/O library for Scala. When establishing a server-mode `TLSSocket` using `fs2-io` on Node.js, the parameter `requestCert = true` is ignored, peer certificate verification is skipped, and the connection proceeds. The vulnerability is limited to: 1. `fs2-io` running on Node.js. The JVM TLS implementation is completely independent. 2. `TLSSocket`s in server-mode. Client-mode `TLSSocket`s are implemented via a different API. 3. mTLS as enabled via `requestCert = true` in `TLSParameters`. The default setting is `false` for server-mode `TLSSocket`s. It was introduced with the initial Node.js implementation of fs2-io in 3.1.0. A patch is released in v3.2.11. The requestCert = true parameter is respected and the peer certificate is verified. If verification fails, a SSLException is raised. If using an unpatched version on Node.js, do not use a server-mode TLSSocket with requestCert = true to establish a mTLS connection.

Action-Not Available
Vendor-typeleveltypelevel
Product-fs2fs2
CWE ID-CWE-295
Improper Certificate Validation
CVE-2020-28907
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-3.41% / 87.63%
||
7 Day CHG~0.00%
Published-24 May, 2021 | 12:43
Updated-04 Aug, 2024 | 16:41
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Incorrect SSL certificate validation in Nagios Fusion 4.1.8 and earlier allows for Escalation of Privileges or Code Execution as root via vectors related to download of an untrusted update package in upgrade_to_latest.sh.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-fusionn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2022-26493
Matching Score-4
Assigner-Drupal.org
ShareView Details
Matching Score-4
Assigner-Drupal.org
CVSS Score-9.8||CRITICAL
EPSS-0.55% / 42.40%
||
7 Day CHG~0.00%
Published-03 Jun, 2022 | 16:00
Updated-03 Aug, 2024 | 05:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
miniOrange SAML Authentication Bypass

Xecurify's miniOrange Premium, Standard, and Enterprise Drupal SAML SP modules possess an authentication and authorization bypass vulnerability. An attacker with access to a HTTP-request intercepting method is able to bypass authentication and authorization by removing the SAML Assertion Signature - impersonating existing users and existing roles, including administrative users/roles. This vulnerability is not mitigated by configuring the module to enforce signatures or certificate checks. Xecurify recommends updating miniOrange modules to their most recent versions. This vulnerability is present in paid versions of the miniOrange Drupal SAML SP product affecting Drupal 7, 8, and 9.

Action-Not Available
Vendor-XecuifyThe Drupal Association
Product-saml_sp_2.0_single_sign_onDrupal 8 miniOrange SAML SPDrupal 9 miniOrange SAML SPDrupal 7 miniOrange SAML SP
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-2048
Matching Score-4
Assigner-HashiCorp Inc.
ShareView Details
Matching Score-4
Assigner-HashiCorp Inc.
CVSS Score-8.1||HIGH
EPSS-0.45% / 36.48%
||
7 Day CHG~0.00%
Published-04 Mar, 2024 | 19:56
Updated-13 Nov, 2025 | 17:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Vault Cert Auth Method Did Not Correctly Validate Non-CA Certificates

Vault and Vault Enterprise (“Vault”) TLS certificate auth method did not correctly validate client certificates when configured with a non-CA certificate as trusted certificate. In this configuration, an attacker may be able to craft a malicious certificate that could be used to bypass authentication. Fixed in Vault 1.15.5 and 1.14.10.

Action-Not Available
Vendor-openbaoHashiCorp, Inc.
Product-vaultopenbaoVault EnterpriseVaultvault_enterprisevault
CWE ID-CWE-295
Improper Certificate Validation
CVE-2020-24715
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.76% / 51.41%
||
7 Day CHG~0.00%
Published-27 Aug, 2020 | 21:52
Updated-04 Aug, 2024 | 15:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The Scalyr Agent before 2.1.10 has Missing SSL Certificate Validation because, in some circumstances, native Python code is used that lacks a comparison of the hostname to commonName and subjectAltName.

Action-Not Available
Vendor-scalyrn/a
Product-scalyr_agentn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2019-20461
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.86% / 54.76%
||
7 Day CHG~0.00%
Published-07 Nov, 2024 | 00:00
Updated-15 Apr, 2026 | 00:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered on Alecto IVM-100 2019-11-12 devices. The device uses a custom UDP protocol to start and control video and audio services. The protocol has been partially reverse engineered. Based upon the reverse engineering, no password or username is ever transferred over this protocol. Thus, one can set up the camera connection feed with only the encoded UID. It is possible to set up sessions with the camera over the Internet by using the encoded UID and the custom UDP protocol, because authentication happens at the client side.

Action-Not Available
Vendor-n/aalecto
Product-n/aivm-100_firmware
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-20080
Matching Score-4
Assigner-MediaTek, Inc.
ShareView Details
Matching Score-4
Assigner-MediaTek, Inc.
CVSS Score-9.8||CRITICAL
EPSS-0.29% / 20.64%
||
7 Day CHG~0.00%
Published-01 Jul, 2024 | 03:18
Updated-28 May, 2025 | 20:12
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In gnss service, there is a possible escalation of privilege due to improper certificate validation. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08720039; Issue ID: MSV-1424.

Action-Not Available
Vendor-rdkcentralThe Linux FoundationGoogle LLCMediaTek Inc.
Product-mt6765mt8673mt6886mt6833rdk-bmt6885mt6891mt6980mt8666mt8667mt8678mt6879mt6785mt6853tyoctoandroidmt6985mt8676mt6890mt6789mt6875mt6873mt6989mt6853mt6990mt6877mt6761mt6889mt6855mt6895mt2735mt6880mt2737mt6893mt6781mt6983mt6883mt6768MT2735, MT2737, MT6761, MT6765, MT6768, MT6781, MT6785, MT6789, MT6833, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6980, MT6983, MT6985, MT6989, MT6990, MT8666, MT8667, MT8673, MT8676, MT8678mt6855mt6990mt6873mt6893mt2735mt6886mt6983mt8666mt6765mt6891mt6883mt8676mt6853tmt6880mt6875mt6761mt6889mt6768mt2737mt8678mt6985mt6890mt6833mt6885mt8673mt6989mt6877mt6781mt6853mt8667mt6980mt6895mt6789androidmt6785mt6879
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-1351
Matching Score-4
Assigner-MongoDB, Inc.
ShareView Details
Matching Score-4
Assigner-MongoDB, Inc.
CVSS Score-8.8||HIGH
EPSS-0.50% / 39.83%
||
7 Day CHG~0.00%
Published-07 Mar, 2024 | 16:10
Updated-11 Mar, 2025 | 16:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
MongoDB Server may allow successful untrusted connection

Under certain configurations of --tlsCAFile and tls.CAFile, MongoDB Server may skip peer certificate validation which may result in untrusted connections to succeed. This may effectively reduce the security guarantees provided by TLS and open connections that should have been closed due to failing certificate validation. This issue affects MongoDB Server v7.0 versions prior to and including 7.0.5, MongoDB Server v6.0 versions prior to and including 6.0.13, MongoDB Server v5.0 versions prior to and including 5.0.24 and MongoDB Server v4.4 versions prior to and including 4.4.28. Required Configuration : A server process will allow incoming connections to skip peer certificate validation if the server process was started with TLS enabled (net.tls.mode set to allowTLS, preferTLS, or requireTLS) and without a net.tls.CAFile configured.

Action-Not Available
Vendor-NetApp, Inc.MongoDB, Inc.
Product-mongodbastra_control_centerontap_toolsMongoDB Servermongodb
CWE ID-CWE-295
Improper Certificate Validation
CVE-2020-24714
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.95% / 57.60%
||
7 Day CHG~0.00%
Published-27 Aug, 2020 | 21:52
Updated-04 Aug, 2024 | 15:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The Scalyr Agent before 2.1.10 has Missing SSL Certificate Validation because, in some circumstances, the openssl binary is called without the -verify_hostname option.

Action-Not Available
Vendor-scalyrn/a
Product-scalyr_agentn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2021-46880
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.57% / 43.61%
||
7 Day CHG~0.00%
Published-14 Apr, 2023 | 00:00
Updated-07 Feb, 2025 | 16:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

x509/x509_verify.c in LibreSSL before 3.4.2, and OpenBSD before 7.0 errata 006, allows authentication bypass because an error for an unverified certificate chain is sometimes discarded.

Action-Not Available
Vendor-n/aOpenBSD
Product-libresslopenbsdn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2021-43882
Matching Score-4
Assigner-Microsoft Corporation
ShareView Details
Matching Score-4
Assigner-Microsoft Corporation
CVSS Score-9||CRITICAL
EPSS-2.42% / 82.43%
||
7 Day CHG~0.00%
Published-15 Dec, 2021 | 14:15
Updated-04 Aug, 2024 | 04:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Microsoft Defender for IoT Remote Code Execution Vulnerability

Microsoft Defender for IoT Remote Code Execution Vulnerability

Action-Not Available
Vendor-Microsoft Corporation
Product-defender_for_iotMicrosoft Defender for IoT
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-36041
Matching Score-4
Assigner-IBM Corporation
ShareView Details
Matching Score-4
Assigner-IBM Corporation
CVSS Score-4.7||MEDIUM
EPSS-0.31% / 23.63%
||
7 Day CHG~0.00%
Published-15 Jun, 2025 | 12:51
Updated-24 Aug, 2025 | 11:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
IBM MQ improper certificate validation

IBM MQ Operator LTS 2.0.0 through 2.0.29, MQ Operator CD 3.0.0, 3.0.1, 3.1.0 through 3.1.3, 3.3.0, 3.4.0, 3.4.1, 3.5.0, 3.5.1 through 3.5.3, and MQ Operator SC2 3.2.0 through 3.2.12 Native HA CRR could be configured with a private key and chain other than the intended key which could disclose sensitive information or allow the attacker to perform unauthorized actions.

Action-Not Available
Vendor-IBM Corporation
Product-supplied_mq_advanced_container_imagesmq_operatorMQ Operator
CWE ID-CWE-295
Improper Certificate Validation
CVE-2021-40855
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.66% / 47.78%
||
7 Day CHG~0.00%
Published-21 Jan, 2022 | 15:33
Updated-04 Aug, 2024 | 02:51
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The EU Technical Specifications for Digital COVID Certificates before 1.1 mishandle certificate governance. A non-production public key certificate could have been used in production.

Action-Not Available
Vendor-europan/a
Product-technical_specifications_for_digital_covid_certificatesn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2023-5554
Matching Score-4
Assigner-LY Corporation
ShareView Details
Matching Score-4
Assigner-LY Corporation
CVSS Score-4.8||MEDIUM
EPSS-0.22% / 12.28%
||
7 Day CHG~0.00%
Published-12 Oct, 2023 | 09:34
Updated-09 Dec, 2025 | 07:26
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0.

Action-Not Available
Vendor-linecorpLINE Corporation
Product-lineLINE client for iOS
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-35434
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government
ShareView Details
Matching Score-4
Assigner-Cybersecurity and Infrastructure Security Agency (CISA) U.S. Civilian Government
CVSS Score-2.3||LOW
EPSS-0.19% / 8.76%
||
7 Day CHG~0.00%
Published-17 Sep, 2025 | 16:53
Updated-30 Sep, 2025 | 16:32
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
CISA Thorium does not validate TLS connections to Elasticsearch

CISA Thorium does not validate TLS certificates when connecting to Elasticsearch. An unauthenticated attacker with access to a Thorium cluster could impersonate the Elasticsearch service. Fixed in 1.1.2.

Action-Not Available
Vendor-cisaCISA
Product-thoriumThorium
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-32878
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.35% / 27.08%
||
7 Day CHG~0.00%
Published-20 Jun, 2025 | 00:00
Updated-08 Jul, 2025 | 14:32
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered on COROS PACE 3 devices through 3.0808.0. It implements a function to connect the watch to a WLAN. This function is mainly for downloading firmware files. Before downloading firmware files, the watch requests some information about the firmware via HTTPS from the back-end API. However, the X.509 server certificate within the TLS handshake is not validated by the device. This allows an attacker within an active machine-in-the-middle position, using a TLS proxy and a self-signed certificate, to eavesdrop and manipulate the HTTPS communication. This could be abused, for example, for stealing the API access token of the assigned user account.

Action-Not Available
Vendor-yftechn/a
Product-coros_pace_3_firmwarecoros_pace_3n/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2023-42425
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.83% / 53.80%
||
7 Day CHG~0.00%
Published-31 Oct, 2023 | 00:00
Updated-09 Jul, 2026 | 01:18
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue in Turing Video Turing Edge+ EVC5FD v.1.38.6 allows remote attacker to execute arbitrary code and obtain sensitive information via the cloud connection components.

Action-Not Available
Vendor-turingn/aturing
Product-edge\+_evc5fd_firmwareedge\+_evc5fdn/aedge\+_evc5fd
CWE ID-CWE-295
Improper Certificate Validation
CVE-2021-3460
Matching Score-4
Assigner-Lenovo Group Ltd.
ShareView Details
Matching Score-4
Assigner-Lenovo Group Ltd.
CVSS Score-8.1||HIGH
EPSS-0.56% / 43.50%
||
7 Day CHG~0.00%
Published-13 Apr, 2021 | 20:41
Updated-03 Aug, 2024 | 16:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The Motorola MH702x devices, prior to version 2.0.0.301, do not properly verify the server certificate during communication with the support server which could lead to the communication channel being accessible by an attacker.

Action-Not Available
Vendor-Motorola Mobility LLC. (Lenovo Group Limited)
Product-mh702xmh702x_firmwareMH702x
CWE ID-CWE-295
Improper Certificate Validation
CVE-2026-9258
Matching Score-4
Assigner-Canon Inc.
ShareView Details
Matching Score-4
Assigner-Canon Inc.
CVSS Score-7.1||HIGH
EPSS-0.27% / 18.62%
||
7 Day CHG~0.00%
Published-15 Jun, 2026 | 23:35
Updated-18 Jun, 2026 | 17:08
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Improper validation of SSH host keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier

Action-Not Available
Vendor-Canon Inc.Microsoft CorporationApple Inc.
Product-macoseos_network_setting_toolwindowsEOS Network Setting Tool for WindowsEOS Network Setting Tool for macOS
CWE ID-CWE-295
Improper Certificate Validation
CVE-2026-9259
Matching Score-4
Assigner-Canon Inc.
ShareView Details
Matching Score-4
Assigner-Canon Inc.
CVSS Score-7.1||HIGH
EPSS-0.19% / 9.43%
||
7 Day CHG~0.00%
Published-15 Jun, 2026 | 23:36
Updated-18 Jun, 2026 | 17:08
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier

Action-Not Available
Vendor-Canon Inc.Microsoft CorporationApple Inc.
Product-macoseos_network_setting_toolwindowsEOS Network Setting Tool for WindowsEOS Network Setting Tool for macOS
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-45159
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.39% / 31.25%
||
7 Day CHG~0.00%
Published-05 Sep, 2024 | 00:00
Updated-05 Jun, 2026 | 19:38
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was discovered in Mbed TLS 3.x before 3.6.1. With TLS 1.3, when a server enables optional authentication of the client, if the client-provided certificate does not have appropriate values in if keyUsage or extKeyUsage extensions, then the return value of mbedtls_ssl_get_verify_result() would incorrectly have the MBEDTLS_X509_BADCERT_KEY_USAGE and MBEDTLS_X509_BADCERT_KEY_USAGE bits clear. As a result, an attacker that had a certificate valid for uses other than TLS client authentication would nonetheless be able to use it for TLS client authentication. Only TLS 1.3 servers were affected, and only with optional authentication (with required authentication, the handshake would be aborted with a fatal alert).

Action-Not Available
Vendor-trustedfirmwaren/aArm Limited
Product-mbed_tlsn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2026-59836
Matching Score-4
Assigner-Fortinet, Inc.
ShareView Details
Matching Score-4
Assigner-Fortinet, Inc.
CVSS Score-6.7||MEDIUM
EPSS-0.13% / 2.65%
||
7 Day CHG~0.00%
Published-14 Jul, 2026 | 15:15
Updated-15 Jul, 2026 | 15:00
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A improper certificate validation vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.5, FortiClientEMS 7.4.0 through 7.4.1, FortiClientEMS 7.2 all versions may allow attacker to information disclosure via <insert attack vector here>

Action-Not Available
Vendor-Fortinet, Inc.
Product-forticlientemsFortiClientEMS
CWE ID-CWE-295
Improper Certificate Validation
CVE-2023-51837
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.47% / 37.84%
||
7 Day CHG~0.00%
Published-30 Jan, 2024 | 00:00
Updated-29 May, 2025 | 15:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Ylianst MeshCentral 1.1.16 is vulnerable to Missing SSL Certificate Validation.

Action-Not Available
Vendor-meshcentraln/a
Product-meshcentraln/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-29331
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.39% / 31.89%
||
7 Day CHG~0.00%
Published-26 Jun, 2025 | 00:00
Updated-10 Jul, 2025 | 14:49
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue in MHSanaei 3x-ui before v.2.5.3 and before allows a remote attacker to execute arbitrary code via the management script x-ui passes the no check certificate option to wget when downloading updates

Action-Not Available
Vendor-mhsanaein/a
Product-3x-uin/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-3738
Matching Score-4
Assigner-VulDB
ShareView Details
Matching Score-4
Assigner-VulDB
CVSS Score-7.3||HIGH
EPSS-0.52% / 40.87%
||
7 Day CHG~0.00%
Published-13 Apr, 2024 | 17:31
Updated-21 Aug, 2025 | 00:52
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
cym1102 nginxWebUI saveCmd handlePath certificate validation

A vulnerability classified as critical has been found in cym1102 nginxWebUI up to 3.9.9. This affects the function handlePath of the file /adminPage/conf/saveCmd. The manipulation of the argument nginxPath leads to improper certificate validation. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-260577 was assigned to this vulnerability.

Action-Not Available
Vendor-nginxWebUI (cym1102)Nginx UI (0xJacky)
Product-nginxwebuinginxWebUInginx_ui
CWE ID-CWE-295
Improper Certificate Validation
CVE-2022-21654
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-7.4||HIGH
EPSS-1.08% / 61.55%
||
7 Day CHG~0.00%
Published-22 Feb, 2022 | 22:35
Updated-23 Apr, 2025 | 19:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Incorrect configuration handling allows TLS session re-use without re-validation in Envoy

Envoy is an open source edge and service proxy, designed for cloud-native applications. Envoy's tls allows re-use when some cert validation settings have changed from their default configuration. The only workaround for this issue is to ensure that default tls settings are used. Users are advised to upgrade.

Action-Not Available
Vendor-envoyproxyenvoyproxy
Product-envoyenvoy
CWE ID-CWE-295
Improper Certificate Validation
CVE-2020-7956
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.98% / 58.65%
||
7 Day CHG~0.00%
Published-31 Jan, 2020 | 12:43
Updated-04 Aug, 2024 | 09:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

HashiCorp Nomad and Nomad Enterprise up to 0.10.2 incorrectly validated role/region associated with TLS certificates used for mTLS RPC, and were susceptible to privilege escalation. Fixed in 0.10.3.

Action-Not Available
Vendor-n/aHashiCorp, Inc.
Product-nomadn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2020-29504
Matching Score-4
Assigner-Dell
ShareView Details
Matching Score-4
Assigner-Dell
CVSS Score-7.4||HIGH
EPSS-0.49% / 39.21%
||
7 Day CHG~0.00%
Published-02 Feb, 2024 | 15:58
Updated-04 Aug, 2024 | 16:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain a Missing Required Cryptographic Step Vulnerability.

Action-Not Available
Vendor-Dell Inc.
Product-bsafe_micro-edition-suitebsafe_crypto-c-micro-editionBSAFE Crypto-C Micro EditionDell BSAFE Micro Edition Suite
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-25140
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.51% / 40.41%
||
7 Day CHG~0.00%
Published-06 Feb, 2024 | 00:00
Updated-29 Aug, 2024 | 20:36
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

A default installation of RustDesk 1.2.3 on Windows places a WDKTestCert certificate under Trusted Root Certification Authorities with Enhanced Key Usage of Code Signing (1.3.6.1.5.5.7.3.3), valid from 2023 until 2033. This is potentially unwanted, e.g., because there is no public documentation of security measures for the private key, and arbitrary software could be signed if the private key were to be compromised. NOTE: the vendor's position is "we do not have EV cert, so we use test cert as a workaround." Insertion into Trusted Root Certification Authorities was the originally intended behavior, and the UI ensured that the certificate installation step (checked by default) was visible to the user before proceeding with the product installation.

Action-Not Available
Vendor-rustdeskn/arustdeskMicrosoft Corporation
Product-rustdeskwindowsn/arustdesk
CWE ID-CWE-295
Improper Certificate Validation
CVE-2020-1952
Matching Score-4
Assigner-Apache Software Foundation
ShareView Details
Matching Score-4
Assigner-Apache Software Foundation
CVSS Score-9.8||CRITICAL
EPSS-2.68% / 84.21%
||
7 Day CHG~0.00%
Published-27 Apr, 2020 | 16:16
Updated-04 Aug, 2024 | 06:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An issue was found in Apache IoTDB .9.0 to 0.9.1 and 0.8.0 to 0.8.2. When starting IoTDB, the JMX port 31999 is exposed with no certification.Then, clients could execute code remotely.

Action-Not Available
Vendor-The Apache Software Foundation
Product-iotdbIoTDB
CWE ID-CWE-295
Improper Certificate Validation
CVE-2022-22885
Matching Score-4
Assigner-MITRE Corporation
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Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.30% / 67.47%
||
7 Day CHG~0.00%
Published-16 Feb, 2022 | 21:56
Updated-03 Aug, 2024 | 03:28
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Hutool v5.7.18's HttpRequest was discovered to ignore all TLS/SSL certificate validation.

Action-Not Available
Vendor-hutooln/a
Product-hutooln/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2020-12637
Matching Score-4
Assigner-MITRE Corporation
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Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.68% / 48.53%
||
7 Day CHG~0.00%
Published-09 May, 2020 | 16:23
Updated-04 Aug, 2024 | 12:04
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Zulip Desktop before 5.2.0 has Missing SSL Certificate Validation because all validation was inadvertently disabled during an attempt to recognize the ignoreCerts option.

Action-Not Available
Vendor-zulipchatn/a
Product-zulip_desktopn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2026-40974
Matching Score-4
Assigner-VMware by Broadcom
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Matching Score-4
Assigner-VMware by Broadcom
CVSS Score-5||MEDIUM
EPSS-0.18% / 8.02%
||
7 Day CHG~0.00%
Published-27 Apr, 2026 | 23:31
Updated-24 Jul, 2026 | 21:10
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Spring Boot's Cassandra auto-configuration does not perform hostname verification when establishing an SSL connection to Cassandra. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); Cassandra SSL auto-configuration. Versions that are no longer supported are also affected per vendor advisory.

Action-Not Available
Vendor-VMware (Broadcom Inc.)
Product-spring_bootSpring Boot
CWE ID-CWE-295
Improper Certificate Validation
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