{"cve":"CVE-2026-43134","nvd":{"published":"2026-05-06T12:16:30.617","modified":"2026-10-19T20:18:08.123","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ\n\nThis adds a check for encryption key size upon receiving\nL2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which\nexpects L2CAP_CR_LE_BAD_KEY_SIZE.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-326"],"references":["https://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104","https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6","https://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45","https://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97","https://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-43134","score":0.00117,"percentile":0.01665,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}