CVE-2026-19977: Efm Iptime a3004t

Critical severity, CVSS 10.0. EPSS: 1.3% chance of exploitation in the next 30 days.

A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function httpcon_check_session_url of the component Session Validation. Performing a manipulation results in improper authentication. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Efm Iptime a3004t: version 14.19.0 only

Published 2026-08-17. Last modified 2026-08-20.