CVE-2026-27850: cwe-940 Improper Verification of Source of a Communication Channel in Linksys MR9600
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.
CVE-2026-27850: cwe-940 Improper Verification of Source of a Communication Channel in Linksys MR9600
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.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ENISA
- Date Reserved
- 2026-02-24T07:07:48.974Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 699f6b6fb7ef31ef0b5556b1
Added to database: 2/25/2026, 9:36:47 PM
Last updated: 2/26/2026, 5:15:01 AM
Views: 1
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