{"id":"CVE-2025-10456","title":"A vulnerability was identified in the handling of Bluetooth Low Energy (BLE) fixed channels (such as SMP or ATT)","summary":"A vulnerability was identified in the handling of Bluetooth Low Energy (BLE) fixed channels (such as SMP or ATT). Specifically, an attacker could exploit a flaw that causes the BLE target (i.e., the device under attack) to attempt to dis…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","cwe":["CWE-190"],"vendor":"zephyrproject","product":"zephyr","affected":["zephyr <= 4.1.0"],"published":"2025-09-19","updated":"2026-10-13","sourceUpdated":"2026-10-13T20:16:57.673","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-10456","references":[{"url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-hcc8-3qr7-c9m8","label":"vulnerabilities@zephyrproject.org"}],"tags":["nvd"],"epss":0.00209,"epssPercentile":0.1034,"ingestedAt":"2026-10-13T20:53:44.532Z","slug":"CVE-2025-10456","body":"## Overview\n\nA vulnerability was identified in the handling of Bluetooth Low Energy (BLE) fixed channels (such as SMP or ATT). Specifically, an attacker could exploit a flaw that causes the BLE target (i.e., the device under attack) to attempt to disconnect a fixed channel, which is not allowed per the Bluetooth specification. This leads to undefined behavior, including potential assertion failures, crashes, or memory corruption, depending on the BLE stack implementation.\n\n## Affected\n\n- `zephyr <= 4.1.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}