CVE-2021-47243

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

0.26% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 17.7% 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

2024-05-21 14:19Z2 YR AGO

Last updated

2026-08-05 08:46Z2 MO AGO

Reserved

2024-04-10

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.1)

CNA CVSS vector

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

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

19ff825c4bf811000139ea690492be8a25700d1e0905d144123998179c3f5a8d

• git.kernel.orghttps://git.kernel.org/stable/c/595897ef118d6fe66690c4fc5b572028c9da95b7
• git.kernel.orghttps://git.kernel.org/stable/c/4cefa061fc63f4d2dff5ab4083f43857cd7a2335
• git.kernel.orghttps://git.kernel.org/stable/c/3b491dd593d582ceeb27aa617600712a6bd14246
• git.kernel.orghttps://git.kernel.org/stable/c/3371392c60e2685af30bd4547badd880f5df2b3f
• git.kernel.orghttps://git.kernel.org/stable/c/ba91c49dedbde758ba0b72f57ac90b06ddf8e548