01 Record

CVE-2025-40283

Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF

HighPUBLISHEDCNA: Linux

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

View raw JSON

02 Description

Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF

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

0.14% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 3.4% of scored records. A rank, not a probability.

NVD base score

7.8 (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:H/I:H/A:H

NVD analysis status

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

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.

04 Metadata

Published: 2025-12-06 21:51Z10 MO AGO
Last updated: 2026-10-15 22:02Z13 DAYS AGO
Reserved: 2025-04-16
Assigning CNA: Linux
Record state: PUBLISHED
Severity: High (CVSS 7.8)
CNA CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 4a7874cc67712be34568faf61cbe70199b3b2061b0c49d2d0eac600df7e9210f

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxfd913ef7ce619467c6b0644af48ba1fec499c623 to < 297dbf87989e09af98f81f2bcb938041785557e8, fd913ef7ce619467c6b0644af48ba1fec499c623 to < f858f004bc343a7ae9f2533bbb2a3ab27428532f, fd913ef7ce619467c6b0644af48ba1fec499c623 to < 7a6d1e740220ff9dfcb6a8c994d6ba49e76db198, fd913ef7ce619467c6b0644af48ba1fec499c623 to < 5dc00065a0496c36694afe11e52a5bc64524a9b8, fd913ef7ce619467c6b0644af48ba1fec499c623 to < 1c28c1e1522c773a94e26950ffb145e88cd9834b, fd913ef7ce619467c6b0644af48ba1fec499c623 to < 95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d, fd913ef7ce619467c6b0644af48ba1fec499c623 to < a2610ecd9fd5708be8997ca8f033e4200c0bb6af, fd913ef7ce619467c6b0644af48ba1fec499c623 to < 23d22f2f71768034d6ef86168213843fc49bf550, 4.11—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/297dbf87989e09af98f81f2bcb938041785557e8
git.kernel.orghttps://git.kernel.org/stable/c/f858f004bc343a7ae9f2533bbb2a3ab27428532f
git.kernel.orghttps://git.kernel.org/stable/c/7a6d1e740220ff9dfcb6a8c994d6ba49e76db198
git.kernel.orghttps://git.kernel.org/stable/c/5dc00065a0496c36694afe11e52a5bc64524a9b8
git.kernel.orghttps://git.kernel.org/stable/c/1c28c1e1522c773a94e26950ffb145e88cd9834b
git.kernel.orghttps://git.kernel.org/stable/c/95b9b98c93b1c0916a3d4cf4540b7f5d69145a0d
git.kernel.orghttps://git.kernel.org/stable/c/a2610ecd9fd5708be8997ca8f033e4200c0bb6af
git.kernel.orghttps://git.kernel.org/stable/c/23d22f2f71768034d6ef86168213843fc49bf550

07 Fixed in

Debian 12

linux
Fixed in 6.1.159-1

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 6.17.9-1

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