CVE-2026-65703
FFmpeg 2.7 - 8.1.2 Out-of-Bounds Write in TDSC Video Decoder
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC video decoder that allows remote attackers to cause heap corruption by supplying a crafted AVI file that changes frame dimensions across TDSF frames. The tdsc_parse_tdsf() function fails to unreference the existing reference frame before calling av_frame_get_buffer(), causing tdsc_blit() and tdsc_yuv2rgb() to write attacker-controlled pixel data beyond the end of the undersized reference frame buffer, resulting in a process crash and potential code execution.
| CWE | CWE-787 |
| Vendor | ffmpeg |
| Product | ffmpeg |
| Published | Jul 23, 2026 |
| Last Updated | Jul 23, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
FFmpeg / FFmpeg
2.7 ≤ 8.1.2
References
Credits
Adrian Junge (vurlo)