CVE-2021-47632

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

0.18% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 8.1% 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 2026-06-17.

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

2025-02-26 01:54Z1 YR AGO

Last updated

2026-05-11 13:58Z3 MO AGO

Reserved

2025-02-26

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

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

Weaknesses

• CWE-667Improper LockingClass

Data version

5.2

Document digest

c38cd181a7d018de72a7c6131b5a6e916f54126b02e13e0ed9a9050bde9eee9b

• git.kernel.orghttps://git.kernel.org/stable/c/6def4eaf0391f24be541633a954c0e4876858b1e
• git.kernel.orghttps://git.kernel.org/stable/c/96917107e67846f1d959ed03be281048efad14c5
• git.kernel.orghttps://git.kernel.org/stable/c/6ebe5ca2cbe438a688f2ae238ef5a0b0b5f3468a
• git.kernel.orghttps://git.kernel.org/stable/c/a4c182ecf33584b9b2d1aa9dad073014a504c01f