Medium 6.3Published Oct 26, 2026

CVE-2026-116463FastStone Image Viewer Box-Average Downsampler FUN_0062d96c out-of-bounds

Updated under an hour ago (Oct 28, 2026, 7:10 PM ET)

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It affects FastStone Image Viewer. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for FastStone Image Viewer

Exploited in the last 30 days

A vulnerability was identified in FastStone Image Viewer up to 8.5. Affected is the function FUN_0062d96c of the component Box-Average Downsampler Engine. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS: 6.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:X/RL:X/RC:R
Weakness (CWE): CWE-125, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Awaiting Analysis
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 26, 2026

Affected products

Affected products

FastStone Image Viewer faststone:image_viewer	8.0; 8.1; 8.2; 8.3; 8.4; 8.5	CNA record

References

References

https://vuldb.com/vuln/426360	vdb-entry, technical-description
https://vuldb.com/vuln/426360/cti	signature, permissions-required
https://vuldb.com/cve/CVE-2026-116463	third-party-advisory
https://vuldb.com/submit/1013651	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.