CVE-2025-25613: Fs s3150-8t2f Firmware

High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days.

FS Inc S3150-8T2F 8-Port Gigabit Ethernet L2+ Switch, 8 x Gigabit RJ45, with 2 x 1Gb SFP, Fanless. All versions before 2.2.0D Build 135103 were discovered to transmit cookies for their web based administrative application containing usernames and passwords. These were transmitted in cleartext using simple base64 encoding during every POST request made to the server.

Affected products

• Fs s3150-8t2f Firmware: before 2.2.0D (fixed in 2.2.0D)

Published 2025-11-20. Last modified 2026-07-05.