Vulnerability · CVE-2025-8585
A vulnerability, which was classified as critical, has been found in libav up to 12.3.
Published Aug 5, 2025 · catalog updated Aug 6, 2025 · A vulnerability, which was
Last checked Oct 26, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-8585. EPSS is 0.24%. Act only if a listed version of A vulnerability, which was is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (A vulnerability, which was).
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-8586 · Medium
- CVE-2025-8584 · Medium
- Severity
- Medium4.8
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.24%
- Remediation
- Vendor / distro source
- Affected products
- vendor n/a libav 12.3
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor n/a libav 12.312.3
How to fix CVE-2025-8585
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 12.3
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-8585. EPSS is 0.24%. Act only if a listed version of A vulnerability, which was is installed.
Which versions are affected?
Compare what you have installed with n/a libav 12.3 12.3. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.24%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Aug 5, 2025 · EUVD
Detected
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 proje
Aug 6, 2025 · EUVD
Updated
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 proje
Sources
- CVE.orgVulnerability recordCVE-2025-8585
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-8585
30-day exploitation probability 0.24%
first.org - EUVDVulnerability recordEUVD-2025-23642
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 explo
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 26, 2026
- CVE.orgOct 21, 2026
- EUVDOct 20, 2026