CVE-2022-36947

CRITICAL

FastStone Image Viewer < 7.6 - Out-of-bounds Write via PNG tRNS Chunk Parsing

Title source: llm
STIX 2.1

Description

Unsafe Parsing of a PNG tRNS chunk in FastStone Image Viewer through 7.5 results in a stack buffer overflow.

References (3)

Core 3
Core References
Product, Release Notes, Vendor Advisory x_refsource_misc
https://www.faststone.org/FSViewerDetail.htm
Third Party Advisory x_refsource_misc
https://wid.cert-bund.de/portal/wid/kurzinformationen

Scores

CVSS v3 9.8
EPSS 0.0205
EPSS Percentile 78.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (1)
faststone/image_viewer < 7.6
Published Aug 18, 2022
Tracked Since Feb 18, 2026