Vulnerability in Linux

CVE-2023-53827

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.

EPSS: 0.002 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 61d6ef3e3408cdf7e622646fb90a9f7f9560b943, 3.5, 0

References

Frequently asked questions

What is CVE-2023-53827?
CVE-2023-53827 is a high-severity vulnerability in Linux. CVSS score: 8.8/10. Published 2025-12-09.
How severe is CVE-2023-53827?
High severity. CVSS v3 base score is 8.8 out of 10.