CVE-2021-46951

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 14.6% 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

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

Red Hat severity

Low. 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

2024-02-27 18:40Z2 YR AGO

Last updated

2026-05-11 13:45Z3 MO AGO

Reserved

2024-02-25

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-191Integer Underflow (Wrap or Wraparound)Base

Data version

5.2

Document digest

6b914357dcb4150508863866d5b7c5e419eed7786fa6921908b3bec9263db5ee

• git.kernel.orghttps://git.kernel.org/stable/c/2f12258b5224cfaa808c54fd29345f3c1cbfca76
• git.kernel.orghttps://git.kernel.org/stable/c/60a01ecc9f68067e4314a0b55148e39e5d58a51b
• git.kernel.orghttps://git.kernel.org/stable/c/3818b753277f5ca0c170bf5b98e0a5a225542fcb
• git.kernel.orghttps://git.kernel.org/stable/c/ac07c557ca12ec9276c0375517bac7ae5be4e50c
• git.kernel.orghttps://git.kernel.org/stable/c/48cff270b037022e37835d93361646205ca25101