HOMEVULNERABILITIESCVE-2022-41916
HIGH

CVE-2022-41916

CWE-193Published: November 15, 2022· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2022-41916 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
heimdal_project1 product(s)
heimdal
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/11/msg00034.html
ADVISORYhttps://www.debian.org/security/2022/dsa-5287
ADVISORYhttps://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cx
ADVISORYhttps://lists.debian.org/debian-lts-announce/2022/11/msg00034.html
ADVISORYhttps://www.debian.org/security/2022/dsa-5287

All References (10)

→
https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cxThird Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202310-06
→
https://security.netapp.com/advisory/ntap-20230216-0008/
→
https://www.debian.org/security/2022/dsa-5287Third Party Advisory
→
https://github.com/heimdal/heimdal/security/advisories/GHSA-mgqr-gvh6-23cxThird Party Advisory
→
https://lists.debian.org/debian-lts-announce/2022/11/msg00034.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202310-06
→
https://security.netapp.com/advisory/ntap-20230216-0008/
→
https://www.debian.org/security/2022/dsa-5287Third Party Advisory

Quick Facts

CVE IDCVE-2022-41916
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-193
CISA KEVNo
Affected2 vendor(s)
PublishedNov 15, 2022

Related CVEs (CWE-193)

CVE-2024-10442
10.0
CVE-2025-54349
10.0
CVE-2020-14510
9.8
CVE-2020-6835
9.8
CVE-2020-8443
9.8
CVE-2020-10062
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-41916 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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