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2.1
CVE-2026-101204: FastStone Image Viewer can be tricked into reading extra data
CVE-2026-101204 · published 20 days ago
Summary
FastStone Image Viewer versions up to 8.3 may read beyond the intended area when handling specially crafted TGA image files. This could let an attacker cause the program to expose information or become unstable from a distance. Update to a newer version or avoid opening TGA files from untrusted sources until a fix is applied.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| faststone | image viewer | 8.0 |
Original advisory text
FastStone Image Viewer TGA Image FSViewer.exe out-of-bounds
A vulnerability was found in FastStone Image Viewer up to 8.3. This affects an unknown function of the file FSViewer.exe of the component TGA Image Handler. The manipulation results in out-of-bounds read. The attack can be launched remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-119Buffer Overflow
CWE-125Out-of-bounds Read
Timeline
Published28 Sep 2026
Updated19 Oct 2026
First seen28 Sep 2026
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