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CVE · referencelatest edition

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

CVE-2022-49138MEDIUM
Linux Linux — Bluetooth: hci_event: Ignore multiple conn complete events
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   A   L   L   N  U  N  N  H    5.7   .0040   32.9     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    7d0db0a373195385a2e0b19d1f5e4b186fdcffac –  —
  Linux    2.6.27 –                                    5.17.3
TIMELINE
  Feb 26  Reserved by Linux
  Feb 26  Published (CNA: Linux)
  Aug 4   RESCORED — CVE-2022-49138 (Linux). CVSS 8.8 → 5.7 (NVD).
CWE-476 · CNA: Linux · CVSS v3.1 · 2 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Ignore multiple conn complete events When one of the three connection complete events is received multiple times for the same handle, the device is registered multiple times which leads to memory corruptions. Therefore, consequent events for a single connection are ignored. The conn->state can hold different values, therefore HCI_CONN_HANDLE_UNSET is introduced to identify new connections. To make sure the events do not contain this or another invalid handle HCI_CONN_HANDLE_MAX and checks are introduced. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=215497

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
February 26, 2025ReservedReserved by Linux
February 26, 2025PublishedPublished (CNA: Linux)
August 4, 2026RESCOREDRESCORED — CVE-2022-49138 (Linux). CVSS 8.8 → 5.7 (NVD).

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux7d0db0a373195385a2e0b19d1f5e4b186fdcffac
LinuxLinux2.6.275.17.3

Weaknesses

CWE-476

References (2)

Related

Authoritative record: CVE-2022-49138 at cve.org

Vendors: linux

Weaknesses: CWE-476

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2022-49138 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 Wednesday, August 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.