CVE-2025-21668

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 12.9% 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

2025-01-31 11:25Z1 YR AGO

Last updated

2026-05-11 21:04Z3 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base

Data version

5.2

Document digest

3032f29c84b08ff602267b34f565bba48952ef1bd771287057c0cbaff5b994c3

• git.kernel.orghttps://git.kernel.org/stable/c/699cc10cc3068f9097a506eae7fe178c860dca4e
• git.kernel.orghttps://git.kernel.org/stable/c/926ad31b76b8e229b412536e77cdf828a5cae9c6
• git.kernel.orghttps://git.kernel.org/stable/c/488a68c948bc52dc2a4554a56fdd99aa67c49b06
• git.kernel.orghttps://git.kernel.org/stable/c/726efa92e02b460811e8bc6990dd742f03b645ea
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.html