CVE-2026-43134

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-43134
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ This adds a check for encryption key size upon receiving L2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which expects L2CAP_CR_LE_BAD_KEY_SIZE.

8.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104 Patch
https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6 Patch
https://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45 Patch
https://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97 Patch
https://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef Patch
https://git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041 Patch
https://git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaad Patch
https://git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
History

12 May 2026, 21:11

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104 - () https://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104 - Patch
References () https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6 - () https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6 - Patch
References () https://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45 - () https://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45 - Patch
References () https://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97 - () https://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97 - Patch
References () https://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef - () https://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef - Patch
References () https://git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041 - () https://git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041 - Patch
References () https://git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaad - () https://git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaad - Patch
References () https://git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4 - () https://git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4 - Patch
CWE NVD-CWE-noinfo
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
First Time Linux linux Kernel
Linux

08 May 2026, 13:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 8.1

06 May 2026, 12:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-05-06 12:16

Updated : 2026-05-12 21:11

NVD link : CVE-2026-43134

Mitre link : CVE-2026-43134

CVE.ORG link : CVE-2026-43134

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo