CVE-2026-19977: EFM ipTIME A3004T Session Validation httpcon_check_session_url improper authentication

Severity: critical (CVSS 10.0 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-17 · updated 2026-08-20
Weakness: CWE-287

Description

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: 14.19.0

References

https://github.com/AdminSafe/CVE/issues/1
https://vuldb.com/cve/CVE-2026-19977
https://vuldb.com/submit/873848
https://vuldb.com/vuln/391156
https://vuldb.com/vuln/391156/cti

Get alerted when CVE-2026-19977 or the next vulnerability affects your stack