CVE-2023-4590: Kimmov Frhed

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Buffer overflow vulnerability in Frhed hex editor, affecting version 1.6.0. This vulnerability could allow an attacker to execute arbitrary code via a long filename argument through the Structured Exception Handler (SEH) registers.

Affected products

• Kimmov Frhed: version 1.6.0 only

Published 2023-11-27. Last modified 2026-06-17.