CVE-2012-4562: Libssh

High severity, CVSS 7.5. EPSS: 12.8% chance of exploitation in the next 30 days.

Multiple integer overflows in libssh before 0.5.3 allow remote attackers to cause a denial of service (infinite loop or crash) and possibly execute arbitrary code via unspecified vectors, which triggers a buffer overflow, infinite loop, or possibly some other unspecified vulnerabilities.

Affected products

• Libssh Libssh: up to and including 0.5.2; version 0.4.7 only; version 0.4.8 only; version 0.5.0 only; version 0.5.1 only

Published 2012-11-30. Last modified 2026-06-16.