Bug 2563210 (CVE-2026-118753)

Summary: CVE-2026-118753 freeimage: freeimage: Arbitrary code execution via unclipped GIF frame dimensions
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FreeImage. By convincing a user or system to process a specially crafted GIF file with frame boundaries exceeding the logical screen width, an attacker can trigger a heap-based buffer overflow during image compositing. This flaw can corrupt heap memory, potentially leading to arbitrary code execution or a Denial of Service (DoS).
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Bug Depends On: 2563380, 2563381, 2563382, 2563383, 2563385    
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Description OSIDB Bzimport 2026-10-28 21:28:27 UTC 
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.