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Vulnerability Details :

CVE-2026-27846

Summary
Assigner-ENISA
Assigner Org ID-a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
Published At-25 Feb, 2026 | 15:03
Updated At-25 Feb, 2026 | 18:36
Rejected At-
Credits

Missing authentication in Linksys MR9600, Linksys MX4200

Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network  to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

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:ENISA
Assigner Org ID:a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
Published At:25 Feb, 2026 | 15:03
Updated At:25 Feb, 2026 | 18:36
Rejected At:
▼CVE Numbering Authority (CNA)
Missing authentication in Linksys MR9600, Linksys MX4200

Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network  to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

Affected Products
Vendor
Linksys Holdings, Inc.Linksys
Product
MR9600
Default Status
affected
Versions
Affected
  • 1.0.4.205530
Vendor
Linksys Holdings, Inc.Linksys
Product
MX4200
Default Status
unaffected
Versions
Affected
  • 1.0.13.210200
Problem Types
TypeCWE IDDescription
CWECWE-306CWE-306 Missing Authentication for Critical Function
Type: CWE
CWE ID: CWE-306
Description: CWE-306 Missing Authentication for Critical Function
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-37CAPEC-37 Retrieve Embedded Sensitive Data
CAPEC ID: CAPEC-37
Description: CAPEC-37 Retrieve Embedded Sensitive Data
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt
third-party-advisory
technical-description
Hyperlink: https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt
Resource:
third-party-advisory
technical-description
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
3.16.2MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Version: 3.1
Base score: 6.2
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
Published At:25 Feb, 2026 | 16:23
Updated At:27 Feb, 2026 | 14:06

Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network  to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

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
Secondary3.16.2MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 6.2
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-306Secondarya6d3dc9e-0591-4a13-bce7-0f5b31ff6158
CWE ID: CWE-306
Type: Secondary
Source: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txta6d3dc9e-0591-4a13-bce7-0f5b31ff6158
N/A
Hyperlink: https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt
Source: a6d3dc9e-0591-4a13-bce7-0f5b31ff6158
Resource: N/A

Change History

0
Information is not available yet

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Matching Score-6
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ShareView Details
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EPSS-0.04% / 11.39%
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Updated-23 Dec, 2025 | 19:13
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KEV Added-Not Available
KEV Action Due Date-Not Available
Bypass Authentication

Successful exploitation of the vulnerability could allow an attacker with local network access to send a specially crafted URL to access certain administration functions without login credentials.

Action-Not Available
Vendor-Linksys Holdings, Inc.
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CWE ID-CWE-306
Missing Authentication for Critical Function
CVE-2023-24934
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ShareView Details
Matching Score-4
Assigner-Microsoft Corporation
CVSS Score-6.2||MEDIUM
EPSS-0.97% / 76.37%
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7 Day CHG~0.00%
Published-14 Apr, 2023 | 21:27
Updated-23 Jan, 2025 | 01:05
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Microsoft Defender Security Feature Bypass Vulnerability

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Action-Not Available
Vendor-Microsoft Corporation
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CWE ID-CWE-306
Missing Authentication for Critical Function
Details not found