Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2022-42896

CVE-2022-42896HIGH

Linux Linux Kernel — Info Leak in l2cap_core in the Linux Kernel

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   A   L   N   N  U  H  H  H    8.8   .0245   84.1     —

AFFECTED
  Product       Versions  Fixed
  Linux Kernel  3.0.0 –   —

TIMELINE
  Oct 12  Reserved by Google
  Nov 23  Published (CNA: Google)
  Oct 14  RESCORED — CVE-2022-42896 (Linux Kernel). CVSS 8 → 8.8 (NVD).

CWE-416 · CNA: Google · CVSS v3.1 · 3 references · NVD status: Modified

Description

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim. We recommend upgrading past commit https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
October 12, 2022	Reserved	Reserved by Google
November 23, 2022	Published	Published (CNA: Google)
October 14, 2026	RESCORED	RESCORED — CVE-2022-42896 (Linux Kernel). CVSS 8 → 8.8 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Linux	Linux Kernel	—	3.0.0	—

Weaknesses

CWE-416

References (3)

https://cert-portal.siemens.com/productcert/html/ssa-794697.html
https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 [Patch, Third Party Advisory]
https://kernel.dance/#711f8c3fb3db61897080468586b970c87c61d9e4 [Patch, Vendor Advisory]

Authoritative record: CVE-2022-42896 at cve.org

Vendors: linux

Weaknesses: CWE-416

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-42896 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.