CVE-2025-40240

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

0.60% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 46.3% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-07-30.

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

2025-12-04 15:31Z9 MO AGO

Last updated

2026-08-05 12:08Z1 MO AGO

Reserved

2025-04-16

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

5b6745e0e20bc3e53d0b95d228f97f68782d4085d0c14620d07d2894803b2285

• git.kernel.orghttps://git.kernel.org/stable/c/61cda2777b07d27459f5cac5a047c3edf9c8a1a9
• git.kernel.orghttps://git.kernel.org/stable/c/08165c296597075763130919f2aae59b5822f016
• git.kernel.orghttps://git.kernel.org/stable/c/03e80a4b04ef1fb2c61dd63216ab8d3a5dcb196f
• git.kernel.orghttps://git.kernel.org/stable/c/4f6da435fb5d8a21cbf8cae5ca5a2ba0e1012b71
• git.kernel.orghttps://git.kernel.org/stable/c/cb9055ba30306ede4ad920002233d0659982f1cb
• git.kernel.orghttps://git.kernel.org/stable/c/7a832b0f99be19df608cb75c023f8027b1789bd1
• git.kernel.orghttps://git.kernel.org/stable/c/89b465b54227c245ddc7cc9ed822231af21123ef
• git.kernel.orghttps://git.kernel.org/stable/c/441f0647f7673e0e64d4910ef61a5fb8f16bfb82