What is CVE-2026-53071?

CVE-2026-53071 is a high-severity vulnerability in Linux, classified under Improper Locking. CVSS score: 8.8/10. Published 2026-06-24.

How severe is CVE-2026-53071?

High severity. CVSS v3 base score is 8.8 out of 10.

Use After Free in Linux

CVE-2026-53071

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_ch…

EPSS: 0.003 (17.7th 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 15f02b91056253e8cdc592888f431da0731337b8, 5.7, 0
Linux Linux_kernel

Weakness classification (CWE)

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)
0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Third Party Advisory)

Frequently asked questions

What is CVE-2026-53071?: CVE-2026-53071 is a high-severity vulnerability in Linux, classified under Improper Locking. CVSS score: 8.8/10. Published 2026-06-24.
How severe is CVE-2026-53071?: High severity. CVSS v3 base score is 8.8 out of 10.