Is CVE-2025-8585 actively exploited?

CVE-2025-8585 has no public evidence of in-the-wild exploitation as of 2025-09-04.

What is the CVSS score for CVE-2025-8585?

CVE-2025-8585 has a CVSS score of 4.8 (MEDIUM severity). Vector: 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:X/V:X/RE:X/U:X.

How do I patch CVE-2025-8585?

Patch guidance is available from libav security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-8585.

CVE-2025-8585 - remediation guidance & executive summary

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.

CVSS Metrics

Vector: 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:X/V:X/RE:X/U:X
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-119 · Memory Buffer Errors CWE-415

Metadata

Primary Vendor: LIBAV
Published: 8/5/2025
Last Modified: 9/4/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

libav : libav

Remediation Guidance

Executive Summary

Cite this page

CVE-2025-8585. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2025-8585

View on NIST NVD

CVE-2025-8585 vulnerability