01 Record

CVE-2025-39982

Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

HighPUBLISHEDCNA: Linux

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

View raw JSON

02 Description

Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync

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

0.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 20.4% 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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-10-19.

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: 2025-10-15 07:56Z1 YR AGO
Last updated: 2026-10-15 22:02Z13 DAYS AGO
Reserved: 2025-04-16
Assigning CNA: Linux
Record state: PUBLISHED
Severity: High (CVSS 8.8)
CNA CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: No CWE assigned
Data version: 5.2
Document digest: 83b5d379ce870da6c22cc52b3e724bb77e7e51f52dcb8328655c8049117f4ff0

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxaef2aa4fa98e18ea5d9345bf777ee698c8598728 to < 6243bda271a628c48875e3e473206e7f584892ce, aef2aa4fa98e18ea5d9345bf777ee698c8598728 to < bcce99f613163a43de24674b717e7a6c135fc879, aef2aa4fa98e18ea5d9345bf777ee698c8598728 to < 484c7d571a3d1b3fd298fa691b660438c4548a53, aef2aa4fa98e18ea5d9345bf777ee698c8598728 to < a78fd4fc5694ecb3b97deb2ad9eaebd67b4d2b08, aef2aa4fa98e18ea5d9345bf777ee698c8598728 to < 9e622804d57e2d08f0271200606bd1270f75126f, 5.18—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/6243bda271a628c48875e3e473206e7f584892ce
git.kernel.orghttps://git.kernel.org/stable/c/bcce99f613163a43de24674b717e7a6c135fc879
git.kernel.orghttps://git.kernel.org/stable/c/484c7d571a3d1b3fd298fa691b660438c4548a53
git.kernel.orghttps://git.kernel.org/stable/c/a78fd4fc5694ecb3b97deb2ad9eaebd67b4d2b08
git.kernel.orghttps://git.kernel.org/stable/c/9e622804d57e2d08f0271200606bd1270f75126f

07 Fixed in

AlmaLinux 10

kernel-abi-stablelists
Fixed in 6.12.0-124.20.1.el10_1
kernel-doc
Fixed in 6.12.0-124.20.1.el10_1

CloudLinux 10

kernel-abi-stablelists
Fixed in 6.12.0-124.20.1.el10_1
kernel-doc
Fixed in 6.12.0-124.20.1.el10_1

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Debian 12

linux
Fixed in 6.1.158-1

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

Debian 13

linux
Fixed in 6.12.57-1

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

Debian 14

linux
Fixed in 6.16.10-1

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