CVE-2026-1200 Remote code execution via segmentation fault in increasebufferto function
A remote attacker can trigger a segmentation fault in the increaseBufferTo function, leading to memory corruption and potential remote code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1200?
CVE-2026-1200 is a medium-severity memory corruption vulnerability in https://github.com/rgaufman/live555 rgaufman/live555, published on 18 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw was found in the rgaufman/live555 fork of live555. A remote attacker could exploit a segmentation fault, in the `increaseBufferTo` function. This vulnerability can lead to memory corruption problems and potentially other consequences.
Weakness: CWE-824
Which versions are affected by CVE-2026-1200?
How do I fix CVE-2026-1200?
No fix has been published for CVE-2026-1200 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-1200 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-1200 exists.
Sources
Also known as GHSA-9f49-2j27-6f79, UBUNTU-CVE-2026-1200.