CVE-2025-21947

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

0.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 30.2% of scored records. A rank, not a probability.

NVD base score

4.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/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

2025-04-01 15:41Z1 YR AGO

Last updated

2026-08-05 11:55Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class

Data version

5.2

Document digest

808d8ebc8a87fdaeffea7f177fed9f7fb8d498bc7bf10bf1aee4025729921c18

• git.kernel.orghttps://git.kernel.org/stable/c/6321bbda4244b93802d61cfe0887883aae322f4b
• git.kernel.orghttps://git.kernel.org/stable/c/76861630b29e51373e73e7b00ad0d467b6941162
• git.kernel.orghttps://git.kernel.org/stable/c/3cb2b2e41541fe6f9cc55ca22d4c0bd260498aea
• git.kernel.orghttps://git.kernel.org/stable/c/1e8833c03a38e1d5d5df6484e3f670a2fd38fb76
• git.kernel.orghttps://git.kernel.org/stable/c/e2ff19f0b7a30e03516e6eb73b948e27a55bc9d2
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html