CVE-2026-96421

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

September 29, 2026

Last Seen

September 29, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical Out-of-Bounds Write Vulnerability in FastStone Image Viewer54.9

A vulnerability, CVE-2026-101203, has been identified in FastStone Image Viewer versions up to 8.3, specifically in the 1bpp RLE Decoder component. This out-of-bounds write vulnerability allows remote attackers to manipulate the application by sending specially crafted image files that require user...