What’s Vulnerable › Vulnerabilities

CVE-2022-36947

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-18 · updated 2026-06-17
• Weakness: CWE-787

Description

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

Affected products

• FastStone Image Viewer: before 7.6 — fixed in 7.6

How to fix

Upgrade to a fixed version: FastStone Image Viewer 7.6. Check the vendor advisory for mitigations.

References

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

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