BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29429.

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1793354956 advisory.

  - BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows     network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must     first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit     this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue     results from the lack of proper validation of the length of user-supplied data prior to copying it to a     fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the     context of root. Was ZDI-CAN-29429. (CVE-2026-19774)

  - A flaw was found in BlueZ. Insufficient validation of packet length fields in GetFolderItems responses     within the Audio/Video Remote Control Profile (AVRCP) implementation allows a malicious Bluetooth device     within range to cause an out-of-bounds memory read. This vulnerability, affecting the     parse_media_element() and parse_media_folder() functions, can lead to a crash of the bluetoothd daemon,     resulting in a Denial of Service (DoS). It could also potentially expose sensitive heap memory contents.
    Exploitation requires user interaction to pair with the malicious device. (CVE-2026-75032)

  - BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash bluetoothd (local DoS): a     crafted nested ServiceRecord can corrupt the SDP XML parser stack so scalar union data is treated as a     sequence pointer, allowing a local caller to crash bluetoothd. (CVE-2026-80185)

  - A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote     user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that     causes a buffer overflow when the target device performs Bluetooth discovery. This vulnerability can lead     to a Denial of Service (DoS) by crashing the bluetoothd service and may allow for arbitrary code     execution. (CVE-2026-80186)

  - AVRCP ListPlayerAttributes double stack overflow in     avrcp_list_player_attributes_rsp/avrcp_get_current_player_value [fedora-all] (CVE-2026-85218)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1793354956 advisory.

  - BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows     network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must     first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit     this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue     results from the lack of proper validation of the length of user-supplied data prior to copying it to a     fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the     context of root. Was ZDI-CAN-29429. (CVE-2026-19774)

  - A flaw was found in BlueZ. Insufficient validation of packet length fields in GetFolderItems responses     within the Audio/Video Remote Control Profile (AVRCP) implementation allows a malicious Bluetooth device     within range to cause an out-of-bounds memory read. This vulnerability, affecting the     parse_media_element() and parse_media_folder() functions, can lead to a crash of the bluetoothd daemon,     resulting in a Denial of Service (DoS). It could also potentially expose sensitive heap memory contents.
    Exploitation requires user interaction to pair with the malicious device. (CVE-2026-75032)

  - BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash bluetoothd (local DoS): a     crafted nested ServiceRecord can corrupt the SDP XML parser stack so scalar union data is treated as a     sequence pointer, allowing a local caller to crash bluetoothd. (CVE-2026-80185)

  - A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote     user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that     causes a buffer overflow when the target device performs Bluetooth discovery. This vulnerability can lead     to a Denial of Service (DoS) by crashing the bluetoothd service and may allow for arbitrary code     execution. (CVE-2026-80186)

  - AVRCP ListPlayerAttributes double stack overflow in     avrcp_list_player_attributes_rsp/avrcp_get_current_player_value [fedora-all] (CVE-2026-85218)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1792508765 advisory.

  - BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows     network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must     first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit     this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue     results from the lack of proper validation of the length of user-supplied data prior to copying it to a     fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the     context of root. Was ZDI-CAN-29429. (CVE-2026-19774)

  - A flaw was found in BlueZ. Insufficient validation of packet length fields in GetFolderItems responses     within the Audio/Video Remote Control Profile (AVRCP) implementation allows a malicious Bluetooth device     within range to cause an out-of-bounds memory read. This vulnerability, affecting the     parse_media_element() and parse_media_folder() functions, can lead to a crash of the bluetoothd daemon,     resulting in a Denial of Service (DoS). It could also potentially expose sensitive heap memory contents.
    Exploitation requires user interaction to pair with the malicious device. (CVE-2026-75032)

  - BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash bluetoothd (local DoS): a     crafted nested ServiceRecord can corrupt the SDP XML parser stack so scalar union data is treated as a     sequence pointer, allowing a local caller to crash bluetoothd. (CVE-2026-80185)

  - A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. A remote     user within Bluetooth radio range can send a specially crafted Extended Inquiry Response (EIR) packet that     causes a buffer overflow when the target device performs Bluetooth discovery. This vulnerability can lead     to a Denial of Service (DoS) by crashing the bluetoothd service and may allow for arbitrary code     execution. (CVE-2026-80186)

  - AVRCP ListPlayerAttributes double stack overflow in     avrcp_list_player_attributes_rsp/avrcp_get_current_player_value [fedora-all] (CVE-2026-85218)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8908-1 advisory.

    Michael Bommarito discovered that BlueZ incorrectly handled codec capability storage in the A2DP profile.
    An attacker could possibly use this issue to cause a stack buffer overflow, resulting in a denial of     service or arbitrary code execution. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu     24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-19774)

    It was discovered that BlueZ incorrectly handled packet length validation. An attacker could possibly use     this issue to read out of bounds memory, causing a crash or exposing sensitive information.
    (CVE-2026-75032)

    It was discovered that BlueZ incorrectly handled crafted XML input. An attacker could possibly use this     issue to crash BlueZ, resulting in a denial of service. (CVE-2026-80185)

    It was discovered that BlueZ incorrectly parsed remote names from Extended Inquiry Response data. An     attacker could possibly use this issue to cause a stack buffer overflow, resulting in a denial of service     or arbitrary code execution. (CVE-2026-80186)

    Alexandro Calo discovered that BlueZ incorrectly parsed certain responses in the AVRCP profile. An     attacker could possibly use this issue to access out of bounds memory, causing a crash or exposing     sensitive information. (CVE-2026-85218)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-3141 advisory.

    BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows     network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must     first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit     this vulnerability.

    The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of     proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based     buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-     CAN-29429. (CVE-2026-19774)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-124432 advisory.

    BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows     network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must     first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit     this vulnerability.

    The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of     proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based     buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-     CAN-29429.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows     network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must     first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit     this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue     results from the lack of proper validation of the length of user-supplied data prior to copying it to a     fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the     context of root. Was ZDI-CAN-29429. (CVE-2026-19774)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
374209	Rocky Linux 9.6 [TuxCare] Security Update: bluez / bluez-cups / bluez-hid2hci / bluez-libs / bluez-libs-devel / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1793354956)	Nessus	Rocky Linux Local Security Checks	Local	high
374208	AlmaLinux 9.6 [TuxCare] Security Update: bluez / bluez-cups / bluez-hid2hci / bluez-libs / bluez-libs-devel / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1793354956)	Nessus	Alma Linux Local Security Checks	Local	high
367926	AlmaLinux 9.2 [TuxCare] Security Update: bluez / bluez-cups / bluez-hid2hci / bluez-libs / bluez-libs-devel / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1792508765)	Nessus	Alma Linux Local Security Checks	Local	high
365372	Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : BlueZ vulnerabilities (USN-8908-1)	Nessus	Ubuntu Local Security Checks	Local	high
351038	Amazon Linux 2023 : bluez, bluez-cups, bluez-deprecated (ALAS2023-2026-3141)	Nessus	Amazon Linux Local Security Checks	Local	high
349862	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: bluez (UTSA-2026-124432)	Nessus	Unity Linux Local Security Checks	Local	high
345981	Linux Distros Unpatched Vulnerability : CVE-2026-19774	Nessus	Misc.	Local	high

Detections

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CVE-2026-19774

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Tenable Plugins

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