CVE-2021-44758

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 66.6% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-12-26 00:00Z3 YR AGO

Last updated

2025-04-14 15:57Z1 YR AGO

Reserved

2021-12-08

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.1

Document digest

b06b081bc43a891be1dfdead6c7b4df89ad3010eab8f02b3f0d606c9787e856e

• github.comhttps://github.com/heimdal/heimdal/security/advisories/GHSA-69h9-669w-88xv
• github.comhttps://github.com/heimdal/heimdal/commit/f9ec7002cdd526ae84fbacbf153162e118f22580
• security.gentoo.orghttps://security.gentoo.org/glsa/202310-06