Dashboard / CVE-2026-43021

CVE-2026-43021

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-05-01 Modified: 2026-11-11 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: fix leaks when hci_cmd_sync_queue_once fails When hci_cmd_sync_queue_once() returns with error, the destroy callback will not be called. Fix leaking references / memory on these failures.

Weakness Classification (1)

Affected Software (10)

VendorProductVersion
Linux Linux a106e50be74b0896583f4d010a69f9806e4194f4 < 7fd74178d4b16dcf47179da634ea9d7c02e3608b
Linux Linux a106e50be74b0896583f4d010a69f9806e4194f4 < aca377208e7f7322bf4e107cdec6e7d7e8aa7a88
Linux Linux 6.19
linux linux_kernel 6.19 – 6.19.12
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0

References & Advisories (2)

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.11%
Raw Score 0.001070
Percentile 1.2%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00107
2026-11-12
0.00107
2026-11-10
0.00107
2026-11-09
0.00107
2026-11-08
0.00107
2026-11-07
0.00107
2026-11-06
0.00107

Intelligence Sources

mitre ref →
nvd ref →

External Links