CVE-2022-41916

7.5 highEPSS 1.0%

High (7.5). EPSS 1.0% 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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 1.0% chance of exploitation in the next 30 days; higher than 62% of CVEs (scores of 2026-10-31)
CWE: CWE-193
Published: 2022-11-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

debian:debian_linux
heimdal_project:heimdal

References

https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html
https://security.gentoo.org/glsa/202310-06
https://security.netapp.com/advisory/ntap-20230216-0008/
https://www.debian.org/security/2022/dsa-5287

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