CVE-2021-46990

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 13.8% 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

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

2024-02-28 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-20Improper Input ValidationClass

Data version

5.2

Document digest

acce2e701fa748125f32c5a607eee49945c0a457e1f888ccb332194cb9e1dc6b

• git.kernel.orghttps://git.kernel.org/stable/c/8382b15864e5014261b4f36c2aa89723612ee058
• git.kernel.orghttps://git.kernel.org/stable/c/0c25a7bb697f2e6ee65b6d63782f675bf129511a
• git.kernel.orghttps://git.kernel.org/stable/c/ee4b7aab93c2631c3bb0753023c5dda592bb666b
• git.kernel.orghttps://git.kernel.org/stable/c/2db22ba4e0e103f00e0512e0ecce36ac78c644f8
• git.kernel.orghttps://git.kernel.org/stable/c/0b4eb172cc12dc102cd0ad013e53ee4463db9508
• git.kernel.orghttps://git.kernel.org/stable/c/d2e3590ca39ccfd8a5a46d8c7f095cb6c7b9ae92
• git.kernel.orghttps://git.kernel.org/stable/c/dd0d6117052faace5440db20fc37175efe921c7d
• git.kernel.orghttps://git.kernel.org/stable/c/5bc00fdda1e934c557351a9c751a205293e68cbf
• git.kernel.orghttps://git.kernel.org/stable/c/aec86b052df6541cc97c5fca44e5934cbea4963b