CVE-2026-43134

HIGH EPSS 7.4%
Published May 6, 20261mo ago · Modified Jun 17, 20262w ago
8.1 CVSS 3.1
High
Find Similar
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
8.1
Exploitability
2.8
Impact
5.2
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack Vector Adjacent
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
7.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥3.14  –  <5.10.252
linuxlinux_kernel*≥5.11  –  <5.15.202
linuxlinux_kernel*≥5.16  –  <6.1.165
linuxlinux_kernel*≥6.2  –  <6.6.128
linuxlinux_kernel*≥6.7  –  <6.12.75
linuxlinux_kernel*≥6.13  –  <6.18.16
linuxlinux_kernel*≥6.19  –  <6.19.6
linuxlinux_kernel7.0any

References 8

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

Remediation

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