CVE-2026-27850

published 2026-02-25

CVE-2026-27850: 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…

high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C H I N A N

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
linksys	mr9600	—	—
linksys	mx4200	—	—