{"id":"CVE-2026-25507","aliases":["EUVD-2026-5377","GHSA-h7r3-gmg9-xjmg"],"status":"published","title":"ESF-IDF Has Use-after-free Vulnerability in BLE Provisioning","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a use-after-free vulnerability was reported in the BLE provisioning transport (protocomm_ble) layer. The issue can be triggered by a remote BLE client while the device is in provisioning mode. The vulnerability occurred when provisioning was stopped with keep_ble_on = true. In this configuration, internal protocomm_ble state and GATT metadata were freed while the BLE stack and GATT services remained active. Subsequent BLE read or write callbacks dereferenced freed memory, allowing a connected or newly connected client to trigger invalid memory acces. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.","severity":{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00231,"percentile":0.14109,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2026-02-04T17:58:18Z","modified":"2026-11-11T02:48:55Z","products":[{"vendor":"espressif","product":"esp-idf"}],"references":[{"url":"https://github.com/espressif/esp-idf/security/advisories/GHSA-h7r3-gmg9-xjmg","tags":["x_refsource_CONFIRM","Third Party Advisory","advisory"]},{"url":"https://github.com/espressif/esp-idf/commit/0540c85140c2c06c0cbecc8843277ea676d5c4a9","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/espressif/esp-idf/commit/1ff264abf2504cade46f0ce3a03f821310bcf6d7","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/espressif/esp-idf/commit/47552ff4fd824caf38215468ebd2f31fb5f36d70","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/espressif/esp-idf/commit/4c3fdcd316f780bab4ae5aa73c9626ea9fe24ac6","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/espressif/esp-idf/commit/894c28afe3f2f8f31ff25b64191883517dddb5cf","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/espressif/esp-idf/commit/cde7b7362adc15638c141c249681cbe5d23de663","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/espressif/esp-idf/commit/dba9a7dc01e4dab14c77d328f6a6f46369aeee63","tags":["x_refsource_MISC","Patch","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25507.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-25507","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-25507","title":"ESF-IDF Has Use-after-free Vulnerability in BLE Provisioning","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a use-after-free vulnerability was reported in the BLE provisioning transport (protocomm_ble) layer. The issue can be triggered by a remote BLE client while the device is in provisioning mode. The vulnerability occurred when provisioning was stopped with keep_ble_on = true. In this configuration, internal protocomm_ble state and GATT metadata were freed while the BLE stack and GATT services remained active. Subsequent BLE read or write callbacks dereferenced freed memory, allowing a connected or newly connected client to trigger invalid memory acces. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.","status":"published","published":"2026-02-04T17:58:18.605Z","modified":"2026-02-04T19:24:17.464Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T13:41:30.911526Z"}],"euvd":[{"id":"EUVD-2026-5377","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a use-after-free vulnerability was reported in the BLE provisioning transport (protocomm_ble) layer. The issue can be triggered by a remote BLE client while the device is in provisioning mode. The vulnerability occurred when provisioning was stopped with keep_ble_on = true. In this configuration, internal protocomm_ble state and GATT metadata were freed while the BLE stack and GATT services remained active. Subsequent BLE read or write callbacks dereferenced freed memory, allowing a connected or newly connected client to trigger invalid memory acces. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.","status":"published","published":"2026-02-04T17:58:18Z","modified":"2026-02-04T19:24:17Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium"}],"updated_at":"2026-11-02T19:48:44.193176Z"}],"nvd":[{"id":"CVE-2026-25507","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a use-after-free vulnerability was reported in the BLE provisioning transport (protocomm_ble) layer. The issue can be triggered by a remote BLE client while the device is in provisioning mode. The vulnerability occurred when provisioning was stopped with keep_ble_on = true. In this configuration, internal protocomm_ble state and GATT metadata were freed while the BLE stack and GATT services remained active. Subsequent BLE read or write callbacks dereferenced freed memory, allowing a connected or newly connected client to trigger invalid memory acces. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.","status":"published","published":"2026-02-04T18:16:09.36Z","modified":"2026-06-17T10:24:45.55Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:12:05.149641Z"}],"osv":[{"id":"CVE-2026-25507","title":"ESF-IDF Has Use-after-free Vulnerability in BLE Provisioning","description":"ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a use-after-free vulnerability was reported in the BLE provisioning transport (protocomm_ble) layer. The issue can be triggered by a remote BLE client while the device is in provisioning mode. The vulnerability occurred when provisioning was stopped with keep_ble_on = true. In this configuration, internal protocomm_ble state and GATT metadata were freed while the BLE stack and GATT services remained active. Subsequent BLE read or write callbacks dereferenced freed memory, allowing a connected or newly connected client to trigger invalid memory acces. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7.","status":"published","published":"2026-02-04T17:58:18.605Z","modified":"2026-11-11T13:21:03.828400674Z","cvss":[{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","level":"medium"}],"cwes":["CWE-416"],"updated_at":"2026-11-11T03:21:32.226287Z"}]}}