01 Record

CVE-2025-68263

ksmbd: ipc: fix use-after-free in ipc_msg_send_request

CriticalPUBLISHEDCNA: Linux

CNA base score9.8 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

ksmbd: ipc: fix use-after-free in ipc_msg_send_request

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.
AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
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

0.44% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 38.2% of scored records. A rank, not a probability.

NVD base score

9.8 (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:H/I:H/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-10-15.

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: 2025-12-16 14:45Z10 MO AGO
Last updated: 2026-10-15 22:02Z13 DAYS AGO
Reserved: 2025-12-16
Assigning CNA: Linux
Record state: PUBLISHED
Severity: Critical (CVSS 9.8)
CNA CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 769994247def54c4489b0803d53a963a4c3eed8d63c0a4b046b2fabd20dfdc3d

05 Affected products

VendorProductVersionsPlatforms

LinuxLinux0626e6641f6b467447c81dd7678a69c66f7746cf to < de85fb58f9967ba024bb08e0041613d37b57b4d1, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 708a620b471a14466f1f52c90bf3f65ebdb31460, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 5ac763713a1ef8f9a8bda1dbd81f0318d67baa4e, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 759c8c30cfa8706c518e56f67971b1f0932f4b9b, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 8229c6ca50cea701e25a7ee25f48441b582ec5fa, 0626e6641f6b467447c81dd7678a69c66f7746cf to < 1fab1fa091f5aa97265648b53ea031deedd26235, 5.15—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/de85fb58f9967ba024bb08e0041613d37b57b4d1
git.kernel.orghttps://git.kernel.org/stable/c/708a620b471a14466f1f52c90bf3f65ebdb31460
git.kernel.orghttps://git.kernel.org/stable/c/5ac763713a1ef8f9a8bda1dbd81f0318d67baa4e
git.kernel.orghttps://git.kernel.org/stable/c/759c8c30cfa8706c518e56f67971b1f0932f4b9b
git.kernel.orghttps://git.kernel.org/stable/c/8229c6ca50cea701e25a7ee25f48441b582ec5fa
git.kernel.orghttps://git.kernel.org/stable/c/1fab1fa091f5aa97265648b53ea031deedd26235

07 Fixed in

Debian 12

linux
Fixed in 6.1.162-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.63-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.17.12-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.