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Vulnerability Details :

CVE-2020-28907

Summary
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At-24 May, 2021 | 12:43
Updated At-04 Aug, 2024 | 16:41
Rejected At-
Credits

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.

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:mitre
Assigner Org ID:8254265b-2729-46b6-b9e3-3dfca2d5bfca
Published At:24 May, 2021 | 12:43
Updated At:04 Aug, 2024 | 16:41
Rejected At:
▼CVE Numbering Authority (CNA)

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.

Affected Products
Vendor
n/a
Product
n/a
Versions
Affected
  • n/a
Problem Types
TypeCWE IDDescription
textN/An/a
Type: text
CWE ID: N/A
Description: n/a
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://www.nagios.com/downloads/nagios-xi/change-log/
x_refsource_MISC
https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
x_refsource_MISC
http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
x_refsource_MISC
Hyperlink: https://www.nagios.com/downloads/nagios-xi/change-log/
Resource:
x_refsource_MISC
Hyperlink: https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
Resource:
x_refsource_MISC
Hyperlink: http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
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://www.nagios.com/downloads/nagios-xi/change-log/
x_refsource_MISC
x_transferred
https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
x_refsource_MISC
x_transferred
http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
x_refsource_MISC
x_transferred
Hyperlink: https://www.nagios.com/downloads/nagios-xi/change-log/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
Resource:
x_refsource_MISC
x_transferred
Hyperlink: http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cve@mitre.org
Published At:24 May, 2021 | 13:15
Updated At:03 Jun, 2021 | 16:31

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.

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

Nagios Enterprises, LLC
nagios
>>fusion>>Versions up to 4.1.8(inclusive)
cpe:2.3:a:nagios:fusion:*:*:*:*:*:*:*:*
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
http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.htmlcve@mitre.org
Third Party Advisory
VDB Entry
https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/cve@mitre.org
Exploit
Third Party Advisory
https://www.nagios.com/downloads/nagios-xi/change-log/cve@mitre.org
Release Notes
Vendor Advisory
Hyperlink: http://packetstormsecurity.com/files/162783/Nagios-XI-Fusion-Privilege-Escalation-Cross-Site-Scripting-Code-Execution.html
Source: cve@mitre.org
Resource:
Third Party Advisory
VDB Entry
Hyperlink: https://skylightcyber.com/2021/05/20/13-nagios-vulnerabilities-7-will-shock-you/
Source: cve@mitre.org
Resource:
Exploit
Third Party Advisory
Hyperlink: https://www.nagios.com/downloads/nagios-xi/change-log/
Source: cve@mitre.org
Resource:
Release Notes
Vendor Advisory

Change History

0
Information is not available yet

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Action-Not Available
Vendor-Nagios Enterprises, LLC
Product-nagios_xiXI
CWE ID-CWE-862
Missing Authorization
CVE-2024-13996
Matching Score-8
Assigner-VulnCheck
ShareView Details
Matching Score-8
Assigner-VulnCheck
CVSS Score-9.2||CRITICAL
EPSS-0.23% / 45.03%
||
7 Day CHG~0.00%
Published-30 Oct, 2025 | 21:44
Updated-17 Nov, 2025 | 18:21
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-Nagios Enterprises, LLC
Product-nagios_xiXI
CWE ID-CWE-613
Insufficient Session Expiration
CVE-2024-14003
Matching Score-8
Assigner-VulnCheck
ShareView Details
Matching Score-8
Assigner-VulnCheck
CVSS Score-9.4||CRITICAL
EPSS-0.99% / 76.45%
||
7 Day CHG~0.00%
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Updated-17 Nov, 2025 | 18:21
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Nagios XI < 2024R1.2 RCE via NRDP Server Plugins

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Action-Not Available
Vendor-Nagios Enterprises, LLC
Product-nagios_xiXI
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2021-37346
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-51.15% / 97.80%
||
7 Day CHG~0.00%
Published-13 Aug, 2021 | 11:30
Updated-04 Aug, 2024 | 01:16
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-n/aNagios Enterprises, LLC
Product-nagios_xi_watchguard_wizardn/a
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2021-36363
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.00% / 76.56%
||
7 Day CHG~0.00%
Published-28 Sep, 2021 | 16:50
Updated-04 Aug, 2024 | 00:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI before 5.8.5 has Incorrect Permission Assignment for migrate.php.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-276
Incorrect Default Permissions
CVE-2021-37344
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-53.60% / 97.92%
||
7 Day CHG~0.00%
Published-13 Aug, 2021 | 11:32
Updated-04 Aug, 2024 | 01:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI Switch Wizard before version 2.5.7 is vulnerable to remote code execution through improper neutralisation of special elements used in an OS Command (OS Command injection).

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xi_switch_wizardn/a
CWE ID-CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVE-2021-36364
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-10.90% / 93.22%
||
7 Day CHG~0.00%
Published-28 Sep, 2021 | 16:52
Updated-04 Aug, 2024 | 00:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI before 5.8.5 incorrectly allows backup_xi.sh wildcards.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CVE-2021-37353
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.37% / 84.62%
||
7 Day CHG~0.00%
Published-13 Aug, 2021 | 11:29
Updated-04 Aug, 2024 | 01:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI Docker Wizard before version 1.1.3 is vulnerable to SSRF due to improper sanitation in table_population.php.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xi_docker_wizardn/a
CWE ID-CWE-918
Server-Side Request Forgery (SSRF)
CVE-2021-37350
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-40.96% / 97.28%
||
7 Day CHG~0.00%
Published-13 Aug, 2021 | 11:30
Updated-04 Aug, 2024 | 01:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI before version 5.8.5 is vulnerable to SQL injection vulnerability in Bulk Modifications Tool due to improper input sanitisation.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE-2021-36365
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.00% / 76.56%
||
7 Day CHG~0.00%
Published-28 Sep, 2021 | 16:53
Updated-04 Aug, 2024 | 00:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI before 5.8.5 has Incorrect Permission Assignment for repairmysql.sh.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-276
Incorrect Default Permissions
CVE-2021-36366
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-10.90% / 93.22%
||
7 Day CHG~0.00%
Published-28 Sep, 2021 | 16:54
Updated-04 Aug, 2024 | 00:54
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI before 5.8.5 incorrectly allows manage_services.sh wildcards.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CVE-2022-38250
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-43.95% / 97.44%
||
7 Day CHG~0.00%
Published-07 Sep, 2022 | 21:14
Updated-03 Aug, 2024 | 10:45
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI v5.8.6 was discovered to contain a SQL injection vulnerability via the mib_name parameter at the Manage MIBs page.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE-2019-9203
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-5.49% / 90.01%
||
7 Day CHG~0.00%
Published-28 Mar, 2019 | 18:41
Updated-04 Aug, 2024 | 21:38
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Authorization bypass in Nagios IM (component of Nagios XI) before 2.2.7 allows closing incidents in IM via the API.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-incident_managern/a
CVE-2019-9165
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-6.51% / 90.90%
||
7 Day CHG~0.00%
Published-28 Mar, 2019 | 18:59
Updated-04 Aug, 2024 | 21:38
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

SQL injection vulnerability in Nagios XI before 5.5.11 allows attackers to execute arbitrary SQL commands via the API when using fusekeys and malicious user id.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE-2020-15903
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-6.98% / 91.25%
||
7 Day CHG~0.00%
Published-09 Sep, 2020 | 20:29
Updated-04 Aug, 2024 | 13:30
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 Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CVE-2023-48084
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-82.09% / 99.18%
||
7 Day CHG~0.00%
Published-14 Dec, 2023 | 00:00
Updated-28 Aug, 2024 | 14:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI before version 5.11.3 was discovered to contain a SQL injection vulnerability via the bulk modification tool.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-89
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CVE-2023-48085
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-62.40% / 98.31%
||
7 Day CHG~0.00%
Published-14 Dec, 2023 | 00:00
Updated-22 May, 2025 | 18:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Nagios XI before version 5.11.3 was discovered to contain a remote code execution (RCE) vulnerability via the component command_test.php.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-94
Improper Control of Generation of Code ('Code Injection')
CVE-2025-34271
Matching Score-8
Assigner-VulnCheck
ShareView Details
Matching Score-8
Assigner-VulnCheck
CVSS Score-8.7||HIGH
EPSS-0.66% / 70.66%
||
7 Day CHG~0.00%
Published-30 Oct, 2025 | 21:22
Updated-17 Nov, 2025 | 21:36
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Nagios Log Server < 2024R2.0.2 Cluster Manager Credential Requests Sent Over Plaintext

Nagios Log Server versions prior to 2024R2.0.2 contain a vulnerability in the cluster manager component when requesting sensitive credentials from peer nodes over an unencrypted channel even when SSL/TLS is enabled in the product configuration. As a result, an attacker positioned on the network path can intercept credentials in transit. Captured credentials could allow the attacker to authenticate as a cluster node or service account, enabling further unauthorized access, lateral movement, or system compromise.

Action-Not Available
Vendor-Nagios Enterprises, LLC
Product-log_serverLog Server
CWE ID-CWE-319
Cleartext Transmission of Sensitive Information
CVE-2020-28900
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.79% / 73.52%
||
7 Day CHG~0.00%
Published-24 May, 2021 | 12:43
Updated-04 Aug, 2024 | 16:40
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Insufficient Verification of Data Authenticity in Nagios Fusion 4.1.8 and earlier and Nagios XI 5.7.5 and earlier allows for Escalation of Privileges or Code Execution as root via vectors related to an untrusted update package to upgrade_to_latest.sh.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xifusionn/a
CWE ID-CWE-345
Insufficient Verification of Data Authenticity
CVE-2020-28910
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.52% / 66.20%
||
7 Day CHG~0.00%
Published-24 May, 2021 | 12:44
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

Creation of a Temporary Directory with Insecure Permissions in Nagios XI 5.7.5 and earlier allows for Privilege Escalation via creation of symlinks, which are mishandled in getprofile.sh.

Action-Not Available
Vendor-n/aNagios Enterprises, LLC
Product-nagios_xin/a
CWE ID-CWE-732
Incorrect Permission Assignment for Critical Resource
CVE-2018-21029
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-1.56% / 81.14%
||
7 Day CHG~0.00%
Published-30 Oct, 2019 | 21:46
Updated-05 Aug, 2024 | 13:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

systemd 239 through 245 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name Indication (SNI) is not sent, and there is no hostname validation with the GnuTLS backend. NOTE: This has been disputed by the developer as not a vulnerability since hostname validation does not have anything to do with this issue (i.e. there is no hostname to be sent)

Action-Not Available
Vendor-systemd_projectn/aFedora Project
Product-fedorasystemdn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2022-35898
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.11% / 29.81%
||
7 Day CHG~0.00%
Published-01 May, 2023 | 00:00
Updated-30 Jan, 2025 | 17:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

OpenText BizManager before 16.6.0.1 does not perform proper validation during the change-password operation. This allows any authenticated user to change the password of any other user, including the Administrator account.

Action-Not Available
Vendor-n/aOpen Text Corporation
Product-bizmanagern/a
CWE ID-CWE-295
Improper Certificate Validation
CWE ID-CWE-287
Improper Authentication
CVE-2022-34831
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.23% / 45.51%
||
7 Day CHG~0.00%
Published-14 Sep, 2022 | 02:58
Updated-03 Aug, 2024 | 09:22
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 Keyfactor PrimeKey EJBCA before 7.9.0, related to possible inconsistencies in DNS identifiers submitted in an ACME order and the corresponding CSR submitted during finalization. During the ACME enrollment process, an order is submitted containing an identifier for one or multiple dnsNames. These are validated properly in the ACME challenge. However, if the validation passes, a non-compliant client can include additional dnsNames the CSR sent to the finalize endpoint, resulting in EJBCA issuing a certificate including the identifiers that were not validated. This occurs even if the certificate profile is configured to not allow a DN override by the CSR.

Action-Not Available
Vendor-primekeyn/a
Product-ejbcan/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2019-18847
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-2.61% / 85.32%
||
7 Day CHG~0.00%
Published-26 Aug, 2020 | 13:47
Updated-05 Aug, 2024 | 02:02
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Enterprise Access Client Auto-Updater allows for Remote Code Execution prior to version 2.0.1.

Action-Not Available
Vendor-akamain/a
Product-enterprise_application_accessn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-56521
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.19% / 40.35%
||
7 Day CHG~0.00%
Published-27 Dec, 2024 | 00:00
Updated-21 Apr, 2025 | 15:25
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 TCPDF before 6.8.0. If libcurl is used, CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER are set unsafely.

Action-Not Available
Vendor-tcpdf_projecttecnick
Product-tcpdftcpdf
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-67229
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.01% / 2.15%
||
7 Day CHG~0.00%
Published-23 Jan, 2026 | 00:00
Updated-26 Jan, 2026 | 15:03
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An improper certificate validation vulnerability exists in ToDesktop Builder v0.32.1 This vulnerability allows an unauthenticated, on-path attacker to spoof backend responses by exploiting insufficient certificate validation.

Action-Not Available
Vendor-n/a
Product-n/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-49369
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-9.8||CRITICAL
EPSS-20.46% / 95.40%
||
7 Day CHG~0.00%
Published-12 Nov, 2024 | 16:44
Updated-26 Nov, 2025 | 13:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Icinga 2 has a TLS Certificate Validation Bypass for JSON-RPC and HTTP API Connections

Icinga is a monitoring system which checks the availability of network resources, notifies users of outages, and generates performance data for reporting. The TLS certificate validation in all Icinga 2 versions starting from 2.4.0 was flawed, allowing an attacker to impersonate both trusted cluster nodes as well as any API users that use TLS client certificates for authentication (ApiUser objects with the client_cn attribute set). This vulnerability has been fixed in v2.14.3, v2.13.10, v2.12.11, and v2.11.12.

Action-Not Available
Vendor-icingaIcingaicingaDebian GNU/Linux
Product-debian_linuxicingaicinga2icinga_web_2
CWE ID-CWE-295
Improper Certificate Validation
CVE-2021-29656
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.22% / 44.32%
||
7 Day CHG~0.00%
Published-18 Feb, 2022 | 21:47
Updated-03 Aug, 2024 | 22:11
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Pexip Infinity Connect before 1.8.0 mishandles TLS certificate validation. The allow list is not properly checked.

Action-Not Available
Vendor-pexipn/a
Product-infinity_connectn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2025-6433
Matching Score-4
Assigner-Mozilla Corporation
ShareView Details
Matching Score-4
Assigner-Mozilla Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.04% / 12.67%
||
7 Day CHG~0.00%
Published-24 Jun, 2025 | 12:28
Updated-30 Oct, 2025 | 16:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
WebAuthn would allow a user to sign a challenge on a webpage with an invalid TLS certificate

If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a WebAuthn challenge that the user would be prompted to complete. This is in violation of the WebAuthN spec which requires "a secure transport established without errors". This vulnerability affects Firefox < 140 and Thunderbird < 140.

Action-Not Available
Vendor-Mozilla Corporation
Product-firefoxFirefoxThunderbird
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-43177
Matching Score-4
Assigner-IBM Corporation
ShareView Details
Matching Score-4
Assigner-IBM Corporation
CVSS Score-5.9||MEDIUM
EPSS-0.07% / 21.99%
||
7 Day CHG~0.00%
Published-22 Oct, 2024 | 14:52
Updated-25 Oct, 2024 | 16:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
IBM Concert improper certificate validation

IBM Concert 1.0.0 and 1.0.1 vulnerable to attacks that rely on the use of cookies without the SameSite attribute.

Action-Not Available
Vendor-IBM Corporation
Product-concertConcert
CWE ID-CWE-295
Improper Certificate Validation
CVE-2022-32563
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-9.8||CRITICAL
EPSS-0.43% / 61.88%
||
7 Day CHG+0.02%
Published-10 Jun, 2022 | 11:57
Updated-03 Aug, 2024 | 07:46
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 Couchbase Sync Gateway 3.x before 3.0.2. Admin credentials are not verified when using X.509 client-certificate authentication from Sync Gateway to Couchbase Server. When Sync Gateway is configured to authenticate with Couchbase Server using X.509 client certificates, the admin credentials provided to the Admin REST API are ignored, resulting in privilege escalation for unauthenticated users. The Public REST API is not impacted by this issue. A workaround is to replace X.509 certificate based authentication with Username and Password authentication inside the bootstrap configuration.

Action-Not Available
Vendor-n/aCouchbase, Inc.
Product-sync_gatewayn/a
CWE ID-CWE-295
Improper Certificate Validation
CVE-2024-42395
Matching Score-4
Assigner-Hewlett Packard Enterprise (HPE)
ShareView Details
Matching Score-4
Assigner-Hewlett Packard Enterprise (HPE)
CVSS Score-9.8||CRITICAL
EPSS-0.27% / 49.75%
||
7 Day CHG~0.00%
Published-06 Aug, 2024 | 18:56
Updated-12 Aug, 2024 | 18:23
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Unauthenticated Stack-Based Buffer Overflow Remote Command Execution (RCE) in the AP Certificate Management Service Accessed by the PAPI Protocol

There is a vulnerability in the AP Certificate Management Service which could allow a threat actor to execute an unauthenticated RCE attack. Successful exploitation could allow an attacker to execute arbitrary commands on the underlying operating system leading to complete system compromise.

Action-Not Available
Vendor-HP Inc.Aruba NetworksHewlett Packard Enterprise (HPE)
Product-arubaosinstantosHPE Aruba Networking InstantOS and Aruba Access Points running ArubaOS 10instant
CWE ID-CWE-295
Improper Certificate Validation
CWE ID-CWE-787
Out-of-bounds Write
CVE-2022-31183
Matching Score-4
Assigner-GitHub, Inc.
ShareView Details
Matching Score-4
Assigner-GitHub, Inc.
CVSS Score-9.1||CRITICAL
EPSS-0.21% / 43.41%
||
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-2023-5554
Matching Score-4
Assigner-LY Corporation
ShareView Details
Matching Score-4
Assigner-LY Corporation
CVSS Score-4.8||MEDIUM
EPSS-0.14% / 34.98%
||
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
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