CVE-2022-36947

criticalpriority · track · 40EPSS 0.029 · 87 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.95% (87th) EPSS

CVSS 9.8 · critical

Is it mine?

6 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-28

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

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedImage Viewercert_bund
Update to the latest version of the product. At least version 7.6.
https://www.faststonesoft.net/DN/FSViewerSetup76.exe

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.8–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:Csecondary · CERT-Bund DE

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-121US

affected products (6)

Products and version ranges known to be affected.

FastStone Image Viewer 7.6all versionsfixedcert_bundDE
FastStone Image Viewer <7.6all versionscert_bundDE
FastStone Image Viewerall versionsfixedcert_bundDE
FastStone Image Viewer< 7.6cert_bundDE
n/a n/a≤ n/aenisa_euvdEU
faststone image viewer< 7.6nvdUScpe:2.3:a:faststone:image_viewer:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

BSI-2022-0002Stack Buffer Overflow vulnerability in FastStone Image Viewer 7.5 and earlier2022-08-01csaf · cert_bundDE

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd NVD CVE.org MITRE

published 2022-08-18modified 2026-06-17

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+16135 more

references (10)

External citations — patches, advisories, analysis.

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