CVE-2021-46955

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

0.74% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 54.5% of scored records. A rank, not a probability.

NVD base score

7.1 (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:H/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-08-04.

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

2024-02-27 18:46Z2 YR AGO

Last updated

2026-08-05 08:45Z2 MO AGO

Reserved

2024-02-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.2)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

536bd2b94d7add17447f8d0cfc0fcb343132db71aa4df275e545f0102cf67743

• git.kernel.orghttps://git.kernel.org/stable/c/b1d7280f9ba1bfdbc3af5bdb82e51f014854f26f
• git.kernel.orghttps://git.kernel.org/stable/c/23e17ec1a5eb53fe39cc34fa5592686d5acd0dac
• git.kernel.orghttps://git.kernel.org/stable/c/5a52fa8ad45b5a593ed416adf326538638454ff1
• git.kernel.orghttps://git.kernel.org/stable/c/df9e900de24637be41879e2c50afb713ec4e8b2e
• git.kernel.orghttps://git.kernel.org/stable/c/490ad0a2390442d0a7b8c00972a83dbb09cab142
• git.kernel.orghttps://git.kernel.org/stable/c/a1478374b0bda89b4277a8afd39208271faad4be
• git.kernel.orghttps://git.kernel.org/stable/c/d841d3cf5297fde4ce6a41ff35451d0e82917f3e
• git.kernel.orghttps://git.kernel.org/stable/c/b3502b04e84ac5349be95fc033c17bd701d2787a
• git.kernel.orghttps://git.kernel.org/stable/c/7c0ea5930c1c211931819d83cfb157bff1539a4c