Vulnerability DatabaseCVE-2026-125225
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CVE-2026-125225
Published:November 09, 2026
Updated:November 10, 2026
FFmpeg through 9.0.2 contains a NULL pointer dereference vulnerability in aac_adtstoasc_filter() that allows attackers to crash applications via oversized ADTS AAC packets. Attackers can supply a crafted file with a packet over 256 MB, overflowing the bit count so init_get_bits() fails unchecked and get_bits() crashes during MP4, Matroska, FLV or LATM remuxing.
Related Resources (8)
https://code.ffmpeg.org/FFmpeg/FFmpeg
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25569
https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/bsf/aac_adtstoasc.c#L82
https://nvd.nist.gov/vuln/detail/CVE-2026-125225
https://github.com/FFmpeg/FFmpeg
https://www.vulncheck.com/advisories/ffmpeg-through-9.0.2-null-pointer-dereference-via-aac-adtstoasc-bitstream-filter
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/125xxx/CVE-2026-125225.json
https://github.com/FFmpeg/FFmpeg/commit/3b1cbb5e0f66b85d15f1d3527436520b3f4711ec
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CVSS v4
Base Score:
6.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Unchecked Return Value
CWE-252