CVE-2023-53827

CVE-2023-53827

High · published December 9, 2025

CVSS v3.1
8.8
EPSS
0%
Percentile
32.0
In the wild
Unconfirmed
What it is

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

Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}

Similar to commit d0be8347c623 ("Bluetooth: L2CAP: Fix use-after-free

caused by l2cap_chan_put"), just use l2cap_chan_hold_unless_zero to

prevent referencing a channel that is about to be destroyed.

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
0.00391 · 32.0th percentile
Published
2025-12-09T21:17Z
References (8)
https://git.kernel.org/stable/c/1351551aa9058e07a20a27a158270cf84fcde621 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/348d446762e7c70778df8bafbdf3fa0df2123f58 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a2a9339e1c9deb7e1e079e12e27a0265aea8421a · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac6725a634f7e8c0330610a8527f20c730b61115 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c02421992505c95c7f3c9ad59ee35e22eac60988 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d9ba36c22a7bb09d6bac4cc2f243eff05da53f43 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f2d38e77aa5f3effc143e7dd24da8acf02925958 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 09 DEC 01:29Z
    Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}
    cvelistv5