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bluez

A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack, identified as CVE-2026-80186. A remote attacker within Bluetooth range can send a specially crafted Extended Inquiry Response (EIR) packet during Bluetooth discovery, causing a buffer overflow. This may lead to denial of service by crashing the bluetoothd service or potentially allow arbitrary code execution. The vulnerability affects multiple Ubuntu LTS releases with specific BlueZ package versions. A security update is available to address this issue.

CVE-2026-80186 is a stack-based buffer overflow vulnerability in BlueZ, the Linux Bluetooth protocol stack. The flaw occurs when BlueZ incorrectly parses remote names from Extended Inquiry Response data during Bluetooth discovery. A remote attacker within Bluetooth radio range can exploit this by sending a crafted EIR packet, causing a buffer overflow that may crash the bluetoothd service or enable arbitrary code execution. This vulnerability affects various Ubuntu LTS releases with BlueZ versions prior to the patched versions listed in the Ubuntu security advisory USN-8908-1. The issue is part of multiple BlueZ vulnerabilities fixed in the advisory.

A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack, identified as CVE-2026-80186. A remote attacker within Bluetooth range can send a specially crafted Extended Inquiry Response (EIR) packet during Bluetooth discovery, causing a buffer overflow. This may 

A stack-based buffer overflow vulnerability exists in BlueZ, the Linux Bluetooth protocol stack. (CVE-2026-80186)

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