CVE-2021-46963

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

Ranks above 16.0% 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 2026-08-04.

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 18:47Z2 YR AGO

Last updated

2026-08-05 08:45Z1 MO AGO

Reserved

2024-02-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

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

Weaknesses

• CWE-416Use After FreeVariant

Data version

5.2

Document digest

ddacb3d2db203d764a9f0922e97207ccfd7f34fbbda407b3a0f9d22309251508

• git.kernel.orghttps://git.kernel.org/stable/c/c5ab9b67d8b061de74e2ca51bf787ee599bd7f89
• git.kernel.orghttps://git.kernel.org/stable/c/77509a238547863040a42d57c72403f7d4c89a8f
• git.kernel.orghttps://git.kernel.org/stable/c/702cdaa2c6283c135ef16d52e0e4e3c1005aa538
• git.kernel.orghttps://git.kernel.org/stable/c/80ef24175df2cba3860d0369d1c662b49ee2de56
• git.kernel.orghttps://git.kernel.org/stable/c/a73208e3244127ef9f2cdf24e4adb947aaa32053
• git.kernel.orghttps://git.kernel.org/stable/c/6641df81ab799f28a5d564f860233dd26cca0d93