CVE-2026-53357

medium Red Hat
CVSS v3 Base Score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Characteristics
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: July 2, 2026 (7 days ago)
Last Modified: July 2, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's Bluetooth component. A Use-After-Free (UAF) vulnerability exists in the `l2cap_sock_cleanup_listen()` and `l2cap_conn_del()` functions. This flaw occurs due to a race condition during the cleanup of a listening socket and a concurrent Bluetooth (HCI) disconnect. An unprivileged local attacker could potentially exploit this to cause a system crash, leading to a Denial of Service (DoS).

CWE

CWE-366

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 8Red Hat Enterprise Linux 9

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 lore.kernel.org