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.
https://github.com/danoli3/FreeImage/releases/tag/3.19.25
https://github.com/danoli3/FreeImage/pull/183
https://github.com/danoli3/FreeImage/commit/96f4099f8e307484ba69b4aa14d772b7679a1bfb
https://github.com/danoli3/FreeImage/commit/0da5ddb4d311e5222251348cca1aa988478b1034
https://github.com/danoli3/FreeImage/blob/3.19.24/Source/FreeImage/PluginGIF.cpp#L719-L772
Published: 2026-10-28
Updated: 2026-10-28
Base Score: 7.2
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
Severity: High
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
Base Score: 8.5
Vector: 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
Severity: High
EPSS: 0.00141