Cyber Resilience

CVE-2026-43134

High

Published: 06 May 2026

Published
06 May 2026
Modified
12 May 2026
KEV Added
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Patch
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CVSS Score v3.1 8.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS Score 0.0018 7.4th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-43134 is a high-severity an unspecified weakness vulnerability in Linux Linux Kernel. Its CVSS base score is 8.1 (High).

Operationally, ranked at the 7.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
NVD-CWE-noinfo

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

Insufficient information to map techniques.
Confidence: LOW · MITRE ATT&CK Enterprise v19.0

Affected Assets

linux
linux kernel
7.0 · 3.14 — 5.10.252 · 5.11 — 5.15.202 · 5.16 — 6.1.165

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References