CVE-2026-101202 FastStone Image Viewer TGA Image out-of-bounds write
Remote attackers can trigger an out-of-bounds write in FastStone Image Viewer via malicious TGA files, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-101202?
CVE-2026-101202 is a medium-severity memory corruption vulnerability in FastStone Image Viewer, published on 28 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2026-101202?
How do I fix CVE-2026-101202?
No fix has been published for CVE-2026-101202 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-101202 being exploited?
There is no known exploitation of CVE-2026-101202 in the wild and no public exploit code.
Sources
Also known as GHSA-r2x9-h2mc-2vpv.