Search/CVE-2026-53364
● CVE — Medium

CVE-2026-53364

VendorlinuxProductlinux kernelDiscoveredJul 13, 2026UpdatedAug 3, 2026

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.

CVSS v3.1
5.5 MEDIUM
EPSS
0.12%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
11
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 26, 2026 → Oct 22, 2026
▼ 0.04pp
0.16% → 0.12% over 4 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Connections
13 relationships
Timeline
disclosure → media coverage
Jul 13, 2026
Disclosure — published as a CVE record. · last revised by NVD Aug 3, 2026
Jul 20, 2026
ubuntu.com reports: USN-8566-1: Linux kernel vulnerabilities
Jul 20, 2026
ubuntu.com reports: USN-8568-1: Linux kernel (OEM) vulnerabilities
Jul 20, 2026
ubuntu.com reports: USN-8569-1: Linux kernel (HWE) vulnerabilities
Jul 23, 2026
ubuntu.com reports: USN-8593-1: Linux kernel vulnerabilities
Jul 24, 2026
ubuntu.com reports: USN-8603-1: Linux kernel (Azure) vulnerabilities
Jul 28, 2026
ubuntu.com reports: USN-8618-1: Linux kernel vulnerabilities
Aug 20, 2026
ubuntu.com reports: USN-8663-1: Linux kernel (NVIDIA) vulnerabilities
Aug 20, 2026
ubuntu.com reports: USN-8664-1: Linux kernel (NVIDIA BaseOS) vulnerabilities
Sep 7, 2026
ubuntu.com reports: USN-8728-1: Linux kernel (GCP) vulnerabilities
Sep 22, 2026
ubuntu.com reports: USN-8728-2: Linux kernel (Azure) vulnerabilities
Sep 29, 2026
ubuntu.com reports: USN-8728-3: Linux kernel (Oracle) vulnerabilities