CVE-2026-74538

CVE-2026-74538

High · published August 15, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
14.4
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: ISO: lock sk in iso_connect_ind

Accessing iso_pi(sk)->conn requires lock_sock, which is not taken in the

"ev3" part of iso_connect_ind. It may also be NULL if socket has

transitioned away from the LISTEN/CONNECT states before locking.

Fix by adding lock/release. Recheck hcon is valid after lock acquire

where needed.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00241 · 14.4th percentile
Published
2026-08-15T17:17Z
References (4)
EPSS history
Timeline
  • 15 AUG 12:27Z
    Bluetooth: ISO: lock sk in iso_connect_ind
    cvelistv5