CVE-2022-44640
Critical
Published: 25 December 2022
Published
25 December 2022
Modified
15 April 2025
KEV Added
—
Patch
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CVSS Score v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0161
82.2th percentile
Risk Priority
21
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2022-44640 is a critical-severity Double Free (CWE-415) vulnerability in Samba Samba. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 17.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-47576
Vulnerability details
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).
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
heimdal project
heimdal
≤ 7.7.1
samba
samba
4.15.0 — 4.15.3 · 4.16.0 — 4.16.8 · 4.17.0 — 4.17.4
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.