Is CVE-2026-53071 actively exploited?

No active exploitation of CVE-2026-53071 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-53071 be exploited remotely?

Partially. CVE-2026-53071 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-53071?

CVE-2026-53071 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-53071

Published: June 24, 2026· Updated: Jun 30, 2026

8.8

CVSS v3.1

EPSS:0.16%probability of exploitation in 30 daysPercentile:6.0th

Official Description

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

Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding

l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file

acquires the lock first. A remote BLE device can send a crafted

L2CAP ECRED reconfiguration response to corrupt the channel list

while another thread is iterating it.

Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(),

and l2cap_chan_unlock() and l2cap_chan_put() after, matching the

pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del().

NVD Source

Technical Analysis

CVE-2026-53071 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.