CVE-2026-101203 FastStone Image Viewer 1bpp RLE Decoder out-of-bounds write
MediumCVSS 5.3
EPSS 0.23%
- Published
- Updated
- Exploit status
- No public exploit known
Description
A vulnerability has been found in FastStone Image Viewer up to 8.3. The impacted element is an unknown function of the component 1bpp RLE Decoder. The manipulation leads to out-of-bounds write. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| faststone image viewer | = 8.0 | No fix listed |
| faststone image viewer | = 8.1 | No fix listed |
| faststone image viewer | = 8.2 | No fix listed |
| faststone image viewer | = 8.3 | No fix listed |
References
- VDB-411012 | FastStone Image Viewer 1bpp RLE Decoder out-of-bounds write vdb-entry
- VDB-411012 | CTI Indicators (IOB, IOC) permissions-required signature
- CVE-2026-101203 | CVE Analysis and Report third-party-advisory
- Submit #907575 | FastStone Soft FastStone Image Viewer 8.3 Heap-based buffer overflow (out-of-bounds write) third-party-advisory