CVE-2021-46993

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

Equal to or higher than the score of 15.3% 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

2024-02-28 08:13Z2 YR AGO

Last updated

2026-08-05 08:45Z2 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-125Out-of-bounds ReadBase

Data version

5.2

Document digest

c0f2fc3221c6d3ed9a59729cc9f9983d56c19feb8bf8504977270102abbedcdc

• git.kernel.orghttps://git.kernel.org/stable/c/687f523c134b7f0bd040ee1230f6d17990d54172
• git.kernel.orghttps://git.kernel.org/stable/c/f7347c85490b92dd144fa1fba9e1eca501656ab3
• git.kernel.orghttps://git.kernel.org/stable/c/3da3f804b82a0a382d523a21acf4cf3bb35f936d
• git.kernel.orghttps://git.kernel.org/stable/c/42ee47c7e3569d9a0e2cb5053c496d97d380472f
• git.kernel.orghttps://git.kernel.org/stable/c/6d2f8909a5fabb73fe2a63918117943986c39b6c