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VULNERABILITIES

CVE-2026-27850 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Due to an improperly configured firewall rule, the router will accept any connection on the WAN port with the source port 5222, exposing all services which are normally only accessible through the local network. This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:5.6 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-014.txt ENISAAdvisoryExploitRemedy

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

ProductVersions
Linksys MR9600
All versions

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • No remediation found in references.
Linksys MX4200
1.0.13.210200

CPE

  • cpe:2.3:h:linksys:mx4200:*:*:*:*:*:*:*:*

Remediation

  • Upgrade: 1.0.13.216602moderate effort

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-27850
NVD Published Date:
Feb 25, 2026
NVD Last Modified:
Jun 17, 2026
Source:
ENISA
CVE-2026-27850 Details - Not Deferred