CVE Feed

    Dashboard / CVE / CVE-2021-43400

    CVE-2021-43400

    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.

    Published:Nov 4, 2021
    Last Modified:Nov 4, 2025
    EPS:Nov 4, 2021
    EPSS Score:0.00134
    CVSS Score:9.1

    Affected Products

    Vendor
    Bluez
    Product
    Bluez
    Vendor
    Debian
    Product
    Debian Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-85218 (CVSS 7.1) — A double stack-based buffer overflow was found in the BlueZ AVRCP controller implementation. A nearby BR/EDR p…
    CVE-2024-8805 (CVSS 8.8) — BlueZ HID over GATT Profile Improper Access Control Remote Code Execution Vulnerability. This vulnerability al…
    CVE-2023-51592 (CVSS 5.7) — BlueZ Audio Profile AVRCP parse_media_folder Out-Of-Bounds Read Information Disclosure Vulnerability. This vul…
    CVE-2023-50229 (CVSS 8) — BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerabi…
    CVE-2023-44431 (CVSS 8) — BlueZ Audio Profile AVRCP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability …
    CVE-2023-50230 (CVSS 8) — BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerabi…
    CVE-2023-27349 (CVSS 8) — BlueZ Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnera…
    CVE-2023-51594 (CVSS 5.7) — BlueZ OBEX Library Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-…
    CVE-2023-51596 (CVSS 7.1) — BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerabi…
    CVE-2023-51580 (CVSS 5.7) — BlueZ Audio Profile AVRCP avrcp_parse_attribute_list Out-Of-Bounds Read Information Disclosure Vulnerability. …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High