SARA / Free Tools / CVE / CVE-2022-36947

CVE-2022-36947 — Unsafe Parsing of a PNG tRNS chunk in FastStone Image Viewer through 7

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

CVSS

— —

EPSS

0.98% (top 23.50%)

CWE

—

Published

2022-08-18T20:58:16.000Z

Last modified

2024-08-03T10:21:31.919Z

CVSS vector

—

01What is this vulnerability?

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

Vendor	Product	Versions
n	a / n/a	n/a

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

www.faststone.org — https://www.faststone.org/FSViewerDetail.htm
wid.cert-bund.de — https://wid.cert-bund.de/portal/wid/kurzinformationen
wid.cert-bund.de — https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2022-0883

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.