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Vulnerability · Published Oct 28, 2026 · Assigned by VulnCheck

CVE-2026-118753FreeImage through 3.18.0 and danoli3 fork before 3.19.25 Heap Buffer Overflow via GIF_PLAYBACK Compositing

High 7.8

In plain English

A high-severity out-of-bounds write in FreeImage from danoli3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 95.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

FreeImage through 3.18.0 and the danoli3 FreeImage fork before 3.19.25 contain 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Ubuntu:22.04:LTSfreeimageno fix listedUBUNTU-CVE-2026-118753
Ubuntu:24.04:LTSfreeimageno fix listedUBUNTU-CVE-2026-118753
Ubuntu:26.04:LTSfreeimageno fix listedUBUNTU-CVE-2026-118753
Ubuntu:26.10freeimageno fix listedUBUNTU-CVE-2026-118753

Affected products (as reported)

VendorProductVersions
danoli3 FreeImage 0 – before 3.19.25
FreeImage FreeImage 0 – through 3.18.0

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References