CVE-2026-65703 – FFmpeg 2.7 – 8.1.2 Out-of-Bounds Write in TDSC Video Decoder

​CVE ID :CVE-2026-65703

Published : July 23, 2026, 6:52 p.m. | 1 hour, 7 minutes ago

Description :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.

Severity: 8.5 | HIGH

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