CVE-2026-5673
MEDIUM
NVD
CVSS Score
5.6
Severity
MEDIUM
Published
Apr 06, 2026
Vendor
unknown
Description
A flaw was found in libtheora. This heap-based out-of-bounds read vulnerability exists within the AVI (Audio Video Interleave) parser, specifically in the avi_parse_input_file() function. A local attacker could exploit this by tricking a user into opening a specially crafted AVI file containing a truncated header sub-chunk. This could lead to a denial-of-service (application crash) or potentially leak sensitive information from the heap.