boxscore/security
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-2026-53364MEDIUM
Linux Linux — Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0011    1.7     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    a8444cca514edd4e47e322926b10516a5a6d7016 –  —
  Linux    6.17 –                                      6.18.35
TIMELINE
  Jun 9   Reserved by Linux
  Jul 13  Published (CNA: Linux)
  Aug 3   ENRICHED — CVE-2026-53364 (Linux). Received CVSS 5.5 and CPE data from NVD.
CWE-401 · CNA: Linux · CVSS v3.1 · 4 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate() hci_le_big_terminate() allocates iso_list_data via kzalloc_obj but returns 0 without freeing it when neither pa_sync_term nor big_sync_term flags are set after evaluating the PA and BIG sync connection state. This early-return path was introduced when hci_le_big_terminate() was refactored to take struct hci_conn instead of raw u8 parameters, adding PA/BIG flag evaluation logic. The existing kfree() on hci_cmd_sync_queue failure does not cover this path.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
June 9, 2026ReservedReserved by Linux
July 13, 2026PublishedPublished (CNA: Linux)
August 3, 2026ENRICHEDENRICHED — CVE-2026-53364 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinuxa8444cca514edd4e47e322926b10516a5a6d7016
LinuxLinux6.176.18.35

Weaknesses

CWE-401

References (4)

Related

Authoritative record: CVE-2026-53364 at cve.org

Vendors: linux

Weaknesses: CWE-401

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-53364 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.