CVE-2025-21917

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

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 15.1% 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

2025-04-01 15:40Z1 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

9bf096d25cb2fe8a92c53385ca162811ec74230406d5a654cbb17e0879642e2f

• git.kernel.orghttps://git.kernel.org/stable/c/4cd847a7b630a85493d0294ad9542c21aafaa246
• git.kernel.orghttps://git.kernel.org/stable/c/394965f90454d6f00fe11879142b720c6c1a872e
• git.kernel.orghttps://git.kernel.org/stable/c/3248c1f833f924246cb98ce7da4569133c1b2292
• git.kernel.orghttps://git.kernel.org/stable/c/4ca078084cdd5f32d533311d6a0b63a60dcadd41
• git.kernel.orghttps://git.kernel.org/stable/c/d50f5c0cd949593eb9a3d822b34d7b50046a06b7
• git.kernel.orghttps://git.kernel.org/stable/c/e5aac1c9b2974636db7ce796ffa6de88fa08335e
• git.kernel.orghttps://git.kernel.org/stable/c/830818c8e70c0364e377f0c243b28061ef7967eb
• git.kernel.orghttps://git.kernel.org/stable/c/552ca6b87e3778f3dd5b87842f95138162e16c82
• 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