CVE-2021-47142

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

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

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

2024-03-25 09:07Z2 YR AGO

Last updated

2026-08-05 08:46Z2 MO AGO

Reserved

2024-03-04

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

62b6340e5dbd92a9225057abd12e342b855241e8300fef40bc0d0c36e74c2665

• git.kernel.orghttps://git.kernel.org/stable/c/0707c3fea8102d211631ba515ef2159707561b0d
• git.kernel.orghttps://git.kernel.org/stable/c/3293cf3513d69f00c14d43e2020826d45ea0e46a
• git.kernel.orghttps://git.kernel.org/stable/c/952ab3f9f48eb0e8050596d41951cf516be6b122
• git.kernel.orghttps://git.kernel.org/stable/c/a849e218556f932576c0fb1c5a88714b61709a17
• git.kernel.orghttps://git.kernel.org/stable/c/7398c2aab4da960761ec182d04d6d5abbb4a226e
• git.kernel.orghttps://git.kernel.org/stable/c/f98cdf084405333ee2f5be548a91b2d168e49276
• git.kernel.orghttps://git.kernel.org/stable/c/d4ea141fd4b40636a8326df5a377d9c5cf9b3faa
• git.kernel.orghttps://git.kernel.org/stable/c/1e5c37385097c35911b0f8a0c67ffd10ee1af9a2