Cyber Resilience

CVE-2021-37750

Medium

Published: 23 August 2021

Published
23 August 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0072 72.8th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-37750 is a medium-severity NULL Pointer Dereference (CWE-476) vulnerability in Mit Kerberos 5. Its CVSS base score is 6.5 (Medium).

Operationally, ranked in the top 27.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.5 and 1.19.x before 1.19.3 has a NULL pointer dereference in kdc/do_tgs_req.c via a FAST inner body that lacks a server field.

CWE(s)
CWE-476

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mit
kerberos 5
≤ 1.18.5 · 1.19.0 — 1.19.3
fedoraproject
fedora
33
debian
debian linux
9.0
starwindsoftware
starwind virtual san
v8r13
oracle
communications cloud native core network slice selection function
22.1.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References