CVE-2026-31512

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: April 22, 2026 (22 days ago)
Last Modified: April 22, 2026
Vendor: Red Hat
Source: REDHAT

Description

A flaw was found in the Linux kernel's Bluetooth L2CAP (Logical Link Control and Adaptation Protocol) component. The l2cap_ecred_data_rcv() function fails to validate the incoming data packet unit (PDU) length before attempting to read the Service Data Unit (SDU) length. This oversight allows an attacker to craft a malicious packet that, when processed, can cause the system to read beyond the allocated buffer, potentially leading to information disclosure or a denial of service.

CWE

CWE-1284

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