CVE-2026-112010 smpeg through 2.0.0 Integer Underflow via stream_header in MPEGsystem.cpp
Attackers can crash applications using the smpeg library by supplying a crafted MPEG file that triggers an integer underflow and out-of-bounds copy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-112010?
CVE-2026-112010 is a medium-severity vulnerability in icculus smpeg, published on 18 Oct 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
smpeg through 2.0.0 contains an integer underflow vulnerability in stream_header() in MPEGsystem.cpp that allows attackers to wrap packet_size by declaring an undersized packet length. Attackers can supply a crafted MPEG file opened via SMPEG_new, SMPEG_new_rwops or SMPEG_new_data to trigger a reachable assertion or out-of-bounds copy, crashing the application.
Weakness: CWE-191
Which versions are affected by CVE-2026-112010?
How do I fix CVE-2026-112010?
No fix has been published for CVE-2026-112010 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-112010 being exploited?
There is no known exploitation of CVE-2026-112010 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-112010, GHSA-xc26-7mh2-w5rr, UBUNTU-CVE-2026-112010.