CVE-2021-44758
High
Published: 26 December 2022
Published
26 December 2022
Modified
14 April 2025
KEV Added
—
Patch
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CVSS Score v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0035
57.8th percentile
Risk Priority
15
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-44758 is a high-severity NULL Pointer Dereference (CWE-476) vulnerability in Heimdal Project Heimdal. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 42.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-31573
Vulnerability details
Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept.
- 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
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.