CVE-2026-31408

medium Red Hat
CVSS v3 Base Score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.0%
Exploitation probability in 30 days
Top 99% most likely to be exploited
Attack Characteristics
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Confidentiality
None
Integrity
None
Availability
High
Published: April 6, 2026 (38 days ago)
Last Modified: April 6, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's Bluetooth SCO (Synchronous Connection-Oriented) protocol implementation. The `sco_recv_frame()` function fails to properly hold a reference to a socket after releasing a lock. This oversight allows a concurrent operation to free the socket while it is still being accessed, leading to a use-after-free vulnerability. A local attacker could potentially exploit this to cause memory corruption or a denial of service.

CWE

CWE-911

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