Patch Forecast
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CVE-2026-101203

A vulnerability has been found in FastStone Image Viewer up to 8.3

Risk score
40/100
CVSS
6.3 v3.1
Exploit chance (30 days)
0.2%
Published
28 Sep 2026

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What to know

What it is
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
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Yellow

  • CVSS 6.3 medium

References

Original 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.

Last activity 28 Sep 2026. Patch Forecast updates every hour.