CVE-2020-35843

5.5 mediumEPSS 0.8%

Medium (5.5) in faststone image viewer. EPSS 0.8% chance of exploitation in the next 30 days.

FastStone Image Viewer 7.5 has an out-of-bounds write (via a crafted image file) at FSViewer.exe+0x956e.

Severity

5.5 medium

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2021-01-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19