CVE-2021-46981

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.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• 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

0.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 16.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

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

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

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

2024-02-28 08:13Z2 YR AGO

Last updated

2026-05-23 15:18Z5 MO AGO

Reserved

2024-02-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

8c75b93200cd0952390d23b33d8fed4864d9fb10493fc5dd8ba739988cef8257

• git.kernel.orghttps://git.kernel.org/stable/c/1c4962df938891af9ab4775f5224ef8601764107
• git.kernel.orghttps://git.kernel.org/stable/c/cde4b55cfb24522dcbba80bbdb0c082303e76c43
• git.kernel.orghttps://git.kernel.org/stable/c/b31d237796fd618379ec8e0f4de3370b5e4aeee7
• git.kernel.orghttps://git.kernel.org/stable/c/54b78ba7e96e5fe1edb8054e375d31a6c0dc60dc
• git.kernel.orghttps://git.kernel.org/stable/c/79ebe9110fa458d58f1fceb078e2068d7ad37390