CVE-2026-88376 Integer overflow in n/a
A specially crafted MP4 file can cause an integer underflow in Bento4, leading to application termination and denial of service.
- 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-2026-88376?
CVE-2026-88376 is a high-severity vulnerability in n/a, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Bento4 1.6.0.0 contains an integer underflow vulnerability in AP4_AvccAtom::Create() and AP4_HvccAtom::Create(). A specially crafted MP4 file containing an avcC or hvcC atom with a declared size smaller than the atom header size can cause the payload-size calculation to wrap to a large unsigned value. The resulting invalid buffer allocation and copy operations can cause application termination, leading to denial of service.
Weakness: CWE-191
Which versions are affected by CVE-2026-88376?
How do I fix CVE-2026-88376?
No fix has been published for CVE-2026-88376 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-88376 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-88376 exists.
Sources
Also known as GHSA-p8mj-xj67-6v9f.