CVE-2026-96611

The record

FFmpeg before 9.0 has a signed integer overflow in libavformat/mov.c. In mov_read_ispe(), uint32_t width/height values from a crafted HEIF ispe box are stored into signed int fields without bounds checking, allowing values exceeding INT_MAX to become negative. In read_image_grid(), accumulating these values causes signed integer overflow (undefined behavior per C17 section 6.5), which on x86 wraps to a small positive value, bypassing downstream validity checks.

Affected packages

Related vulnerabilities

• CVE-2026-110264 An issue has been discovered in GitLab CE/EE affecting all versions from 7.0 before… CWE-190
• CVE-2026-53615 util-linux is a random collection of Linux utilities. CWE-190
• CVE-2026-106574 ImageMagick is free and open-source software used for editing and manipulating digital… CWE-190
• CVE-2026-106571 ImageMagick is free and open-source software used for editing and manipulating digital… CWE-190
• CVE-2026-75820 GNU Aspell contains an integer truncation vulnerability in the WritableDict::add()… CWE-190
• CVE-2026-102621 A vulnerability was identified in Freedesktop Poppler up to 26.08.0. CWE-190
• CVE-2026-102620 A vulnerability was determined in Freedesktop Poppler 26.06.0/26.07.0/26.08.0. CWE-190
• CVE-2026-102633 libexpat versions 2.7.2 through 2.8.5 contain an integer overflow vulnerability in… CWE-190