CVE-2026-118753

FreeImage (danoli3 fork) before 3.19.25 contains a heap buffer overflow vulnerability in PluginGIF.cpp that allows attackers to write past the canvas allocation via unclipped GIF frame rectangles. Attackers can craft a GIF whose frame left plus width exceeds the logical screen width, causing GifPlaybackCompositeFrame() and GifPlaybackFillRect() to corrupt heap memory when loaded with GIF_PLAYBACK.

CVSS 4.0

8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE

CWE-787

Published

2026-10-28

Modified

2026-10-28

Record from

the NVD, synced 2026-10-28

References

• https://github.com/danoli3/FreeImage
• https://github.com/danoli3/FreeImage/blob/3.19.24/Source/FreeImage/PluginGIF.cpp#L719-L772
• https://github.com/danoli3/FreeImage/commit/0da5ddb4d311e5222251348cca1aa988478b1034
• https://github.com/danoli3/FreeImage/commit/96f4099f8e307484ba69b4aa14d772b7679a1bfb
• https://github.com/danoli3/FreeImage/pull/183

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