🛡️ CVE-2026-5673
🟡 CVSS 5.6 — Medium ⚠️ Exploit Public CWE-125 NVD
5.6
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.6
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:H
CWE CWE-125
Public Exploit ⚠️ Yes
Source NVD
Published 2026-04-06
Updated 2026-06-02
Modified 2026-05-01
Fix URL N/A

Affected Packages

Software From version Fixed in
enterprise-linux
theora

References

Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2455340
Exploit, Issue Tracking, Third Party Advisory https://github.com/xiph/theora/issues/24

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