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CVE-2026-65703

FFmpeg 2.7 - 8.1.2 Out-of-Bounds Write in TDSC Video Decoder

Published: 7/23/2026 Last updated: 7/28/2026 Reserved: 7/22/2026

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.

CNA assigner: VulnCheck (83251b91-4cc7-4094-a5c7-464a1b83ea10) Requested by: n/a

Metrics

Version Score Severity Vector String
4.0 8.5 High CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
3.1 7.8 High CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Opam packages affected (3)

conf-ffmpeg ffmpeg opus

Products affected (2)

Product Vendor Version
FFmpeg FFmpeg VMware SD-WAN Orchestrator 3.3.2 prior to 3.3.2 P3 and 3.4.x prior to 3.4.4.
FFmpeg FFmpeg AR8035, QCA6390, QCA6391, QCA6574A, QCA6595AU, QCA6696, QCA8081, QCA8337, QCX315, SA515M, SD 675, SD 8 Gen1 5G, SD480, SD675, SD678, SD690 5G, SD720G, SD730, SD765, SD765G, SD768G, SD865 5G, SD870, SDX55, SDX55M, SDX65, SM6250, SM6250P, SM6375, SM7250P, WCD9341, WCD9360, WCD9370, WCD9375, WCD9380, WCD9385, WCN3950, WCN3980, WCN3988, WCN3990, WCN3991, WCN3998, WCN6850, WCN6851, WCN6855, WCN6856, WSA8810, WSA8815, WSA8830, WSA8835

References (6)

Credits (2)