CVE-2026-7739 justdan96 tsMuxer hevc.cpp setFPS denial of service
Local attackers can cause a denial of service in tsMuxer via the setFPS function, affecting unsupported versions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-7739?
CVE-2026-7739 is a medium-severity denial of service vulnerability in justdan96 tsMuxer, published on 4 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A weakness has been identified in justdan96 tsMuxer up to 2.7.0. This vulnerability affects the function HevcVpsUnit::setFPS of the file /AFLplusplus/tsMuxer_prev/tsMuxer/hevc.cpp. This manipulation of the argument track_id causes denial of service. The attack requires local access. The exploit has been made available to the public and could be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.
Weakness: CWE-404
Which versions are affected by CVE-2026-7739?
How do I fix CVE-2026-7739?
No fix has been published for CVE-2026-7739 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-7739 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7739 exists.
Sources
Also known as GHSA-x2qh-qj48-7p3r.