CVE-2026-65705 (GCVE-0-2026-65705)
Vulnerability from cvelistv5
Published
2026-07-23 19:00
Modified
2026-07-28 01:06
Severity ?
7.3 (High) - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-787 - Out-of-bounds Write
  • CWE-131 - Incorrect Calculation of Buffer Size
Summary
FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_floodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinit_filter 0. When config_input() allocates the points traversal stack based on initial frame dimensions and a subsequent larger frame is processed, filter_frame() performs flood-fill neighbor pushes beyond the original allocation boundary, resulting in heap corruption and process crash with potential for code execution depending on heap layout and process hardening.
References
Impacted products
Vendor Product Version
FFmpeg FFmpeg Version: 3.4   <
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