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TI-2022-21958 Aliases CVE-2022-44640

Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an…

Priority MEDIUM 53CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-415 and the CVSS impact.

Summary

Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02349 83rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*before 7.7.1VulnerableHeimdal Project
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*4.15.0 to before 4.15.3; 4.16.0 to before 4.16.8; 4.17.0 to before 4.17.4VulnerableSamba
  • cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:* Versions before 7.7.1 Vulnerable ·Heimdal Project
  • cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* Versions 4.15.0 to before 4.15.3; 4.16.0 to before 4.16.8; 4.17.0 to before 4.17.4 Vulnerable ·Samba

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-44640

References

Advisory 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences