Vulnerability DatabaseCVE-2026-52295
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CVE-2026-52295
Published:September 01, 2026
Updated:September 22, 2026
FFmpeg before 9.0 has an out-of-bounds read because the copied extradata lacked required padding before GetBitContext-based access in libavformat/iamf_writer.c.
Affected Packages
https://github.com/FFmpeg/FFmpeg.git (GITHUB):
Affected version(s) >=n7.0 <n9.0
Fix Suggestion:
Update to version n9.0
Related Resources (5)
https://github.com/Kenan-Kamel/VulnerabilitiesReference/tree/main/FFmpeg/ExtradataPadding
https://nvd.nist.gov/vuln/detail/CVE-2026-52295
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52295.json
https://git.ffmpeg.org/gitweb/ffmpeg.git/commit/8439e0203744a30d280668fcd086f74ed5001da1
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22988
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CVSS v4
Base Score:
2.1
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
2.9
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-120
Out-of-bounds Read
CWE-125
EPSS
Base Score:
0.12