CVE-2025-8584

LOW

libav <= 12.3 - Null Pointer Dereference in av_buffer_unref

Title source: llm
STIX 2.1

Description

A vulnerability classified as problematic was found in libav up to 12.3. Affected by this vulnerability is the function av_buffer_unref of the file libavutil/buffer.c of the component AVI File Parser. The manipulation leads to null pointer dereference. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The bug was initially reported by the researcher to the wrong project. This vulnerability only affects products that are no longer supported by the maintainer.

References (5)

Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry technical-description
https://vuldb.com/?id.318817
Permissions Required, VDB Entry signature permissions-required
https://vuldb.com/?ctiid.318817
Third Party Advisory, VDB Entry third-party-advisory
https://vuldb.com/?submit.621824
Exploit issue-tracking
https://trac.ffmpeg.org/ticket/11679

Scores

CVSS v3 3.3
EPSS 0.0020
EPSS Percentile 9.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-404 CWE-476
Status published
Products (1)
libav/libav < 12.3
Published Aug 05, 2025
Tracked Since Feb 18, 2026