What is CVE-2021-44758?

CVE-2021-44758 is a high-severity vulnerability in Heimdal_project Heimdal, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-12-26.

How severe is CVE-2021-44758?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-44758 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

NULL pointer dereference in Heimdal_project Heimdal

CVE-2021-44758

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.

EPSS: 0.012 (65.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Heimdal_project Heimdal
N/a — versions n/a

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Third Party Advisory)
cve@mitre.org (Patch, Third Party Advisory)
cve@mitre.org

Frequently asked questions

What is CVE-2021-44758?: CVE-2021-44758 is a high-severity vulnerability in Heimdal_project Heimdal, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2022-12-26.
How severe is CVE-2021-44758?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-44758 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.