Vulnerability record · CVE-2025-8585 · published 5 August 2025

CVE-2025-8585: Libav memory buffer overflow vulnerability

Libav · Libav

A vulnerability, which was classified as critical, has been found in libav up to 12.3. Affected by this issue is the function main of the file /avtools/avconv.c of the component DSS File Demuxer. The manipulation leads to double free. Attacking locally is a requirement. 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.

1.9 CVSS 4.0 Low EPSS 0.22% · top 89.2% CWE-119 · Memory buffer overflowCWE-415 · Double free

1.9CVSS 4.0 base score, v2 4.3

0.22%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

7References, 3 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Libav Libav

References

Link	Tags
https://drive.google.com/file/d/1I4VVXGys156UdeSTgya_GGxLZxwuxUPw/view?usp=sharing	Exploit
https://trac.ffmpeg.org/ticket/11680	Exploit
https://vuldb.com/?ctiid.318818	Permissions RequiredVDB Entry
https://vuldb.com/?id.318818	Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.621825	Third Party AdvisoryVDB Entry
https://trac.ffmpeg.org/ticket/11680	Exploit
https://vuldb.com/?submit.621825	Third Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-3984Libav vulnerabilityMultiple unspecified vulnerabilities in Libav before 0.8.12 allow remote attackers to have unknown impact and vectors.EPSS 4.0%6 Jun 2014 10.0CVE-2011-3937Ffmpeg vulnerabilityThe H.263 codec (libavcodec/h263dec.c) in FFmpeg 0.7.x before 0.7.12, 0.8.x before 0.8.11, and unspecified versions before 0.10, and in Libav 0.5.x b…EPSS 2.3%5 Jan 2013 10.0CVE-2012-5144Canonical ubuntu linux memory buffer overflow vulnerabilityGoogle Chrome before 23.0.1271.97, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.5, do not properly perform AAC decoding, which allows remote att…EPSS 3.4%12 Dec 2012 10.0CVE-2012-2802Libav vulnerabilityUnspecified vulnerability in the ac3_decode_frame function in libavcodec/ac3dec.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.4 has unknown impa…EPSS 2.9%10 Sep 2012 10.0CVE-2012-2800Libav vulnerabilityUnspecified vulnerability in the ff_ivi_process_empty_tile function in libavcodec/ivi_common.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 an…EPSS 2.9%10 Sep 2012 10.0CVE-2012-2797Ffmpeg vulnerabilityUnspecified vulnerability in the decode_frame_mp3on4 function in libavcodec/mpegaudiodec.c in FFmpeg before 0.11 and Libav 0.8.x before 0.8.5 has unk…EPSS 2.6%10 Sep 2012 10.0CVE-2012-2803Libav vulnerabilityDouble free vulnerability in the mpeg_decode_frame function in libavcodec/mpeg12.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x befo…EPSS 3.3%10 Sep 2012 10.0CVE-2012-2801Libav vulnerabilityUnspecified vulnerability in libavcodec/avs.c in FFmpeg before 0.11, and Libav 0.7.x before 0.7.7 and 0.8.x before 0.8.4, has unknown impact and atta…EPSS 3.0%10 Sep 2012

Source: NIST National Vulnerability Database (record CVE-2025-8585), CISA KEV, FIRST EPSS (scores of 2026-10-01). This page is refreshed as NVD updates the record.