PT-2026-37474 · Linux+2 · Linux Kernel+2

CVE-2026-43134

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Published

2026-02-13

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Updated

2026-08-23

CVSS v3.1

8.1

High

VectorAV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description The Bluetooth L2CAP component fails to perform a key size check when receiving L2CAP LE CONN REQ. This missing validation is contrary to the L2CAP/LE/CFC/BV-15-C requirement, which expects the system to return L2CAP CR LE BAD KEY SIZE when the encryption key size is invalid.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

BDU:2026-11677
CVE-2026-43134
OESA-2026-2492
OESA-2026-2493
OESA-2026-2494
OESA-2026-2495
OPENSUSE-SU-2026:21555-1
SUSE-SU-2026:23066-1
SUSE-SU-2026:23068-1
SUSE-SU-2026:23193-1
SUSE-SU-2026:23194-1
SUSE-SU-2026:23221-1
SUSE-SU-2026:23231-1
SUSE-SU-2026:23237-1
SUSE-SU-2026:23241-1
SUSE-SU-2026:23244-1
SUSE-SU-2026:3130-1
SUSE-SU-2026:3166-1
USN-8492-1
USN-8492-2
USN-8492-3
USN-8492-4
USN-8492-5
USN-8497-1
USN-8498-1
USN-8499-1
USN-8575-1
USN-8575-2
USN-8575-3
USN-8576-1
USN-8576-2
USN-8597-1
USN-8606-1
USN-8607-1
USN-8609-1
USN-8610-1
USN-8619-1
USN-8620-1
USN-8620-2
USN-8620-3
USN-8620-4
USN-8668-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu