What’s Vulnerable › Vulnerabilities

CVE-2020-35843

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-01-26 · updated 2026-06-17
• Weakness: CWE-787

Description

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

Affected products

• FastStone Image Viewer: 7.5

References

• https://github.com/DmitryMeD/pentesting/blob/main/FastStone%20Image%20Viewer%207.5.md
• https://twitter.com/DmitriyMelikov
• https://github.com/DmitryMeD/pentesting/blob/main/FastStone%20Image%20Viewer%207.5.md
• https://twitter.com/DmitriyMelikov

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