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2.1
CVE-2026-101205: FastStone Image Viewer may read beyond intended data
CVE-2026-101205 · published 20 days ago
Summary
FastStone Image Viewer (versions up to 8.3) can be sent a specially crafted PCX image that makes the program read memory it shouldn't. This could lead to crashes or unintended exposure of information, and it can be triggered from another computer. Apply any available updates from FastStone or disable PCX image handling until a fix is released.
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 PCX Decoder out-of-bounds
A vulnerability was determined in FastStone Image Viewer up to 8.3. This impacts an unknown function of the component PCX Decoder. This manipulation causes out-of-bounds read. The attack may be initiated 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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