{"vulnerability": "CVE-2021-42553", "sightings": [{"uuid": "580949db-9473-4325-a3ac-5337375858bf", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-42553", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/15411", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2021-42553\n\ud83d\udd25 CVSS Score: 6.8 (cvssV3_1, Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)\n\ud83d\udd39 Description: A buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics in versions before 3.5.1 allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.\n\ud83d\udccf Published: 2022-10-21T00:00:00.000Z\n\ud83d\udccf Modified: 2025-05-07T20:10:49.445Z\n\ud83d\udd17 References:\n1. https://github.com/STMicroelectronics/stm32_mw_usb_host/pull/4\n2. https://github.com/STMicroelectronics/stm32_mw_usb_host", "creation_timestamp": "2025-05-07T20:22:49.000000Z"}, {"uuid": "0da9cfef-5281-4bf1-b5ac-d1aa30ce14d8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2021-42553", "type": "seen", "source": "https://t.me/cibsecurity/51912", "content": "\u203c CVE-2021-42553 \u203c\n\nA buffer overflow vulnerability in stm32_mw_usb_host of STMicroelectronics allows an attacker to execute arbitrary code when the descriptor contains more endpoints than USBH_MAX_NUM_ENDPOINTS. The library is typically integrated when using a RTOS such as FreeRTOS on STM32 MCUs.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2022-10-21T21:07:58.000000Z"}]}