CVE-2026-78167 EFM ipTIME T16000M Session Validation httpcon_check_session_url improper authentication
Remote attackers can bypass authentication in the session validation handler of EFM ipTIME T16000M routers, potentially gaining unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78167?
CVE-2026-78167 is a critical authentication bypass vulnerability in EFM ipTIME T16000M, published on 24 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A weakness has been identified in EFM ipTIME T16000M 14.20.2. The impacted element is the function httpcon_check_session_url of the component Session Validation Handler. This manipulation causes improper authentication. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-287
Which versions are affected by CVE-2026-78167?
How do I fix CVE-2026-78167?
No fix has been published for CVE-2026-78167 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-78167 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78167 exists.
Sources
Also known as GHSA-2hpc-g37m-pmw5.