๐Ÿ” CVE Alert

CVE-2026-27850

HIGH 7.5

Improper verification in Linksys MR9600, Linksys MX4200

CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th

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.

Vendor linksys
Product mr9600
Published Feb 25, 2026
Last Updated Feb 25, 2026
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Affected Versions

Linksys / MR9600
1.0.4.205530
Linksys / MX4200
1.0.13.210200

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
syss.de: https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-014.txt