VULNERABILITY INTELLIGENCE

CVE-2026-65703

CVSS score7.8 HIGH
EPSS probability0.33%
CISA KEVNot currently listed
Published2026-07-23
Last modified2026-10-24
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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.

Weakness classification

  • disclosure@vulncheck.com: CWE-787

Primary references