CVE-2022-41916: Debian Linux

High severity, CVSS 7.5. EPSS: 1% chance of exploitation in the next 30 days.

Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC (via PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509. Users should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue.

Affected products

• Debian Debian Linux: version 10.0 only; version 11.0 only
• Heimdal Project Heimdal: before 7.7.1 (fixed in 7.7.1)

Published 2022-11-15. Last modified 2026-06-17.