CVE-2026-27850

3 documents3 sources
Severity
7.5HIGH
EPSS
0.0%
top 86.51%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Linksys Mr9600Linksys Mx4200
Timeline
PublishedFeb 25

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5linksys/mr96001.0.4.205530
▶CVEListV5linksys/mx42001.0.13.210200

🔴Vulnerability Details

2
CVEList
Improper verification in Linksys MR9600, Linksys MX4200↗2026-02-25
▶
GHSA
GHSA-j57x-8g4m-v9v5: 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↗2026-02-25
▶