CVE-2026-5673
Libtheora: libtheora: denial of service or information disclosure via malformed avi file processing
- State
- Published
- Severity
- 5.6 Medium
- Published
- Apr 6, 2026
- Updated
- May 1, 2026
- Reserved
- Apr 6, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.6 Medium | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H | redhat |
Weaknesses
- CWE-125 Out-of-bounds Read
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 6Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat |
References
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.