CVE-2025-21957

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

0.23% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 13.5% 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

2025-04-01 15:46Z1 YR AGO

Last updated

2026-05-11 21:09Z3 MO AGO

Reserved

2024-12-29

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-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

0ab6aaa2ec53773844eaa171ae881b25ae797a35c0858ca1bcc19e790b36418d

• git.kernel.orghttps://git.kernel.org/stable/c/afa27b7c17a48e01546ccaad0ab017ad0496a522
• git.kernel.orghttps://git.kernel.org/stable/c/11a8dac1177a596648a020a7f3708257a2f95fee
• git.kernel.orghttps://git.kernel.org/stable/c/c737e2a5fb7f90b96a96121da1b50a9c74ae9b8c
• git.kernel.orghttps://git.kernel.org/stable/c/24602e2664c515a4f2950d7b52c3d5997463418c
• git.kernel.orghttps://git.kernel.org/stable/c/ea371d1cdefb0951c7127a33bcd7eb931cf44571
• git.kernel.orghttps://git.kernel.org/stable/c/af71ba921d08c241a817010f96458dc5e5e26762
• git.kernel.orghttps://git.kernel.org/stable/c/7ac2473e727d67a38266b2b7e55c752402ab588c
• git.kernel.orghttps://git.kernel.org/stable/c/5233e3235dec3065ccc632729675575dbe3c6b8a
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
• lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html