CVE-2026-101202
FastStone Image Viewer TGA Image out-of-bounds write
FastStone Image Viewer
CVSS
5.3MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.23%Chance of exploitation activity in the next 30 days, higher than 13% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Description
A flaw has been found in FastStone Image Viewer up to 8.3. The affected element is an unknown function of the component TGA Image Handler. Executing a manipulation can lead to out-of-bounds write. It is possible to launch the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Text from CVE List
Affected versions 4
- Image Vieweraffected: 8.0CVE List
- Image Vieweraffected: 8.1CVE List
- Image Vieweraffected: 8.2CVE List
- Image Vieweraffected: 8.3CVE List