FFmpeg before 9.0 has an out-of-bounds read because of missing required padding in WMA extradata allocation paths in libavcodec/wmaenc.c. (CVE-2026-52296)
FFmpeg versions prior to 9.0 contain an out-of-bounds read vulnerability due to missing required padding in the WMA extradata allocation paths within the libavcodec/wmaenc.c file. This flaw can cause a denial of service but does not impact confidentiality or integrity.
AI Analysis
Technical Summary
CVE-2026-52296 is an out-of-bounds read vulnerability in FFmpeg before version 9.0. The issue arises from missing required padding in the allocation of WMA extradata in the libavcodec/wmaenc.c source file. This memory handling flaw can lead to reading beyond allocated memory boundaries, potentially causing application crashes or denial of service conditions. The vulnerability has a low CVSS score of 2.9, reflecting limited impact and high attack complexity.
Potential Impact
The vulnerability allows an attacker with local access and high attack complexity to cause a denial of service by triggering an out-of-bounds read. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
No vendor advisory or patch information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted WMA media files or restrict access to trusted users to reduce risk.
FFmpeg before 9.0 has an out-of-bounds read because of missing required padding in WMA extradata allocation paths in libavcodec/wmaenc.c. (CVE-2026-52296)
Description
FFmpeg versions prior to 9.0 contain an out-of-bounds read vulnerability due to missing required padding in the WMA extradata allocation paths within the libavcodec/wmaenc.c file. This flaw can cause a denial of service but does not impact confidentiality or integrity.
CVSS v3.1
Score 2.9low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-52296 is an out-of-bounds read vulnerability in FFmpeg before version 9.0. The issue arises from missing required padding in the allocation of WMA extradata in the libavcodec/wmaenc.c source file. This memory handling flaw can lead to reading beyond allocated memory boundaries, potentially causing application crashes or denial of service conditions. The vulnerability has a low CVSS score of 2.9, reflecting limited impact and high attack complexity.
Potential Impact
The vulnerability allows an attacker with local access and high attack complexity to cause a denial of service by triggering an out-of-bounds read. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
No vendor advisory or patch information is provided. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, avoid processing untrusted WMA media files or restrict access to trusted users to reduce risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-923g-f8rq-pv4w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-52296"]
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6aa74f9d55bf5e2cf5591b34
Added to database: 09/14/2026, 01:36:29 UTC
Last enriched: 09/14/2026, 01:46:32 UTC
Last updated: 09/14/2026, 02:39:06 UTC
Views: 5
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