VULNERABILITY INTELLIGENCE

CVE-2026-88377

CVSS score6.2 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-09-24
Last modified2026-09-29
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

Bento4 1.6.0.0 contains an integer underflow vulnerability in the avcC and hvcC configuration atom parsers. A specially crafted MP4 file containing an atom with a declared size smaller than AP4_ATOM_HEADER_SIZE can cause AP4_AvccAtom::Create() or AP4_HvccAtom::Create() to underflow the payload-size calculation. The resulting oversized buffer operation can cause invalid or NULL pointers to be passed to the AP4_DataBuffer copy path, resulting in application termination and denial of service.

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-191

Primary references