CVE-2021-26235

HIGH

FastStone Image Viewer <= 7.5 - Denial of Service via Malformed CUR File

Title source: llm
STIX 2.1

Description

FastStone Image Viewer <= 7.5 is affected by a user mode write access violation near NULL at 0x005bdfc9, triggered when a user opens or views a malformed CUR file that is mishandled by FSViewer.exe. Attackers could exploit this issue for a Denial of Service (DoS) or possibly to achieve code execution.

References (1)

Core 1

Scores

CVSS v3 7.8
EPSS 0.0106
EPSS Percentile 60.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-476
Status published
Products (1)
faststone/image_viewer < 7.5
Published Mar 18, 2021
Tracked Since Feb 18, 2026