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CVE-2025-8585

libav DSS File Demuxer avconv.c main double free

MEDIUM
5.3
CVSS Score
Published: August 5, 2025 at 05:02 PM UTC
Updated: June 17, 2026 at 10:07 AM UTC
1 product affected across 1 vendorLibav

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

Exploit
Source: [email protected]
https://drive.google.com/file/d/1I4VVXGys156UdeSTgya_GGxLZxwuxUPw/view?usp=sharing
Issue TrackingExploit
Source: [email protected]
https://trac.ffmpeg.org/ticket/11680
SignaturePermissions RequiredVDB Entry
Source: [email protected]
https://vuldb.com/?ctiid.318818
VDB EntryTechnical DescriptionThird Party Advisory
Source: [email protected]
https://vuldb.com/?id.318818
Third Party AdvisoryVDB Entry
Source: [email protected]
https://vuldb.com/?submit.621825

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusANALYZED
CWE
CWE-119CWE-415

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