01 Record

CVE-2025-22041

ksmbd: fix use-after-free in ksmbd_sessions_deregister()

HighPUBLISHEDCNA: Linux

CNA base score8.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ksmbd: fix use-after-free in ksmbd_sessions_deregister()

03 Exploitation and scoring

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 ImpacttotalSuccessful exploitation gives total 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

0.66% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 48.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. 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.

04 Metadata

Published

2025-04-16 14:11Z1 YR AGO

Last updated

2026-08-05 11:56Z1 MO AGO

Reserved

2024-12-29

Assigning CNA

Linux

Record state

PUBLISHED

Severity

High (CVSS 8.8)

CNA CVSS vector

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

Weaknesses

CWE-416Use After FreeVariant

Data version

5.2

Document digest

f585d0c908cc98e22d1f86f81f6a9adbd43c40a7dc17778a362568c33dde41c9

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf to < f0eb3f575138b816da74697bd506682574742fcd, 0626e6641f6b467447c81dd7678a69c66f7746cf to < a8a8ae303a8395cbac270b5b404d85df6ec788f8, 0626e6641f6b467447c81dd7678a69c66f7746cf to < ca042cc0e4f9e0d2c8f86dd67e4b22f30a516a9b, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 8ed0e9d2f410f63525afb8351181eea36c80bcf1, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 33cc29e221df7a3085ae413e8c26c4e81a151153, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 15a9605f8d69dc85005b1a00c31a050b8625e1aa, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/f0eb3f575138b816da74697bd506682574742fcd
git.kernel.orghttps://git.kernel.org/stable/c/a8a8ae303a8395cbac270b5b404d85df6ec788f8
git.kernel.orghttps://git.kernel.org/stable/c/ca042cc0e4f9e0d2c8f86dd67e4b22f30a516a9b
git.kernel.orghttps://git.kernel.org/stable/c/8ed0e9d2f410f63525afb8351181eea36c80bcf1
git.kernel.orghttps://git.kernel.org/stable/c/33cc29e221df7a3085ae413e8c26c4e81a151153
git.kernel.orghttps://git.kernel.org/stable/c/15a9605f8d69dc85005b1a00c31a050b8625e1aa
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

01 Record index

CVE-2025-22041

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References

02 Records

CVE-2025-22041

02 Description

03 Exploitation and scoring

04 Metadata

05 Affected products

06 References