{"id":"CVE-2019-13120","aliases":["EUVD-2019-4657","GHSA-vvg7-3vpg-wq97"],"status":"published","title":"Amazon FreeRTOS up to and including v1.4.8 for AWS lacks length checking in...","description":"Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0119,"percentile":0.68161,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125"],"published":"2019-10-07T21:57:48Z","modified":"2026-10-24T10:30:15Z","products":[{"vendor":"amazon","product":"amazon_web_services_freertos"}],"references":[{"url":"https://aws.amazon.com/cn/freertos/security-updates/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-13120"},{"url":"https://github.com/advisories/GHSA-vvg7-3vpg-wq97"}],"sources":{"cve":[{"id":"CVE-2019-13120","description":"Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.","status":"published","published":"2019-10-07T21:57:48Z","modified":"2024-08-04T23:41:10.494Z","updated_at":"2026-11-02T14:20:24.357095Z"}],"euvd":[{"id":"EUVD-2019-4657","description":"Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.","status":"published","published":"2019-10-07T21:57:48Z","modified":"2024-08-04T23:41:10Z","updated_at":"2026-11-03T02:40:43.860719Z"}],"ghsa":[{"id":"GHSA-vvg7-3vpg-wq97","title":"Amazon FreeRTOS up to and including v1.4.8 for AWS lacks length checking in...","description":"Amazon FreeRTOS up to and including v1.4.8 for AWS lacks length checking in prvProcessReceivedPublish, resulting in leakage of arbitrary memory contents on a device to an attacker. An attacker sends a malformed MQTT publish packet, and waits for an MQTTACK packet containing the leaked data.","status":"published","published":"2022-05-24T16:58:00Z","modified":"2023-01-31T05:04:08Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:48:36.723893Z"}],"nvd":[{"id":"CVE-2019-13120","description":"Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.","status":"published","published":"2019-10-07T22:15:10.477Z","modified":"2026-06-17T02:16:06.56Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-125"],"updated_at":"2026-11-02T14:05:31.019577Z"}],"osv":[{"id":"CVE-2019-13120","description":"Amazon FreeRTOS up to and including v1.4.8 lacks length checking in prvProcessReceivedPublish, resulting in untargetable leakage of arbitrary memory contents on a device to an attacker. If an attacker has the authorization to send a malformed MQTT publish packet to an Amazon IoT Thing, which interacts with an associated vulnerable MQTT message in the application, specific circumstances could trigger this vulnerability.","status":"published","published":"2019-10-07T22:15:10.477Z","modified":"2026-10-24T10:30:15.107720415Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:11.029493Z"}]}}