CVE-2021-43400

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CVSS 3.1

9.1 critical

EPSS

2%p75

Published

Nov 4, 2021 (Nov 4, 2021)

Modified

Jun 17, 2026

Description

An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.

Vendors: bluez debian
Products: bluez, debian linux
Weakness: CWE-416
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (1.7%)

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