{"id":"CVE-2026-80186","title":"Bluez: stack overflow in name2utf8 causes dos and potential code execution","summary":"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…","severity":"high","cvss":7.6,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H","cvssSource":"cna","cwe":["CWE-120"],"vendor":"Red Hat","product":"bluez","affected":["bluez (all versions)","bluez","bluez (all versions)","bluez (all versions)","bluez (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-27T14:27:17.054717Z"},"published":"2026-08-25","updated":"2026-10-16","sourceUpdated":"2026-10-16T11:51:22.918Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80186","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-80186"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2524132","label":"RHBZ#2524132"},{"url":"https://github.com/bluez/bluez/security/advisories/GHSA-68h6-5qgp-3975"}],"tags":["cve.org"],"epss":0.00501,"epssPercentile":0.41477,"ingestedAt":"2026-10-16T12:05:46.479Z","slug":"CVE-2026-80186","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `bluez (all versions)`\n- `bluez`\n- `bluez (all versions)`\n- `bluez (all versions)`\n- `bluez (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nMitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":41.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}