HOMEVULNERABILITIESCVE-2025-8585
MEDIUM

CVE-2025-8585

CWE-119Published: August 5, 2025· Updated: Jun 17, 2026

5.3
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-8585 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Affected Vendors & Products

libav1 product(s)
libav
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://vuldb.com/?id.318818
ADVISORYhttps://vuldb.com/?submit.621825
ADVISORYhttps://vuldb.com/?submit.621825

All References (7)

→
https://drive.google.com/file/d/1I4VVXGys156UdeSTgya_GGxLZxwuxUPw/view?usp=sharingExploit
→
https://trac.ffmpeg.org/ticket/11680Exploit
→
https://vuldb.com/?ctiid.318818Permissions Required · VDB Entry
→
https://vuldb.com/?id.318818Third Party Advisory · VDB Entry
→
https://vuldb.com/?submit.621825Third Party Advisory · VDB Entry
→
https://trac.ffmpeg.org/ticket/11680Exploit
→
https://vuldb.com/?submit.621825Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2025-8585
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-119
CISA KEVNo
Affected1 vendor(s)
PublishedAug 5, 2025

Related CVEs (CWE-119)

CVE-2015-3867
10.0
CVE-2015-3868
10.0
CVE-2015-3873
10.0
CVE-2015-3874
10.0
CVE-2015-3875
10.0
CVE-2015-3823
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-8585 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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