STMicroelectronics STM32L4 devices through 2020-10-19 have incorrect access control. The flash read-out protection (RDP) can be degraded from RDP level 2 (no access via debug interface) to level 1 (limited access via debug interface) by injecting a fault during the boot phase.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.0, requiring local system access to exploit but requires specific conditions to be met without requiring user interaction requiring only low-level privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 95 products from st, from st, from st and 92 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2021-05-21T12:15:07.730
2024-11-21T05:20:51.937
Modified
CVSSv3.1: 7.0 (HIGH)
AV:L/AC:M/Au:N/C:P/I:P/A:P
3.4
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | st | stm32cubel4_firmware | ≤ 1.16.0 | Yes |
| Hardware | st | stm32l412c8 | - | No |
| Hardware | st | stm32l412cb | - | No |
| Hardware | st | stm32l412k8 | - | No |
| Hardware | st | stm32l412kb | - | No |
| Hardware | st | stm32l412r8 | - | No |
| Hardware | st | stm32l412rb | - | No |
| Hardware | st | stm32l412t8 | - | No |
| Hardware | st | stm32l412tb | - | No |
| Hardware | st | stm32l422cb | - | No |
| Hardware | st | stm32l422kb | - | No |
| Hardware | st | stm32l422rb | - | No |
| Hardware | st | stm32l422tb | - | No |
| Hardware | st | stm32l431cb | - | No |
| Hardware | st | stm32l431cc | - | No |
| Hardware | st | stm32l431kb | - | No |
| Hardware | st | stm32l431kc | - | No |
| Hardware | st | stm32l431rb | - | No |
| Hardware | st | stm32l431rc | - | No |
| Hardware | st | stm32l431vc | - | No |
| Hardware | st | stm32l432kb | - | No |
| Hardware | st | stm32l432kc | - | No |
| Hardware | st | stm32l433cb | - | No |
| Hardware | st | stm32l433cc | - | No |
| Hardware | st | stm32l433rb | - | No |
| Hardware | st | stm32l433rc | - | No |
| Hardware | st | stm32l433vc | - | No |
| Hardware | st | stm32l442kc | - | No |
| Hardware | st | stm32l443cc | - | No |
| Hardware | st | stm32l443rc | - | No |
| Hardware | st | stm32l443vc | - | No |
| Hardware | st | stm32l451cc | - | No |
| Hardware | st | stm32l451ce | - | No |
| Hardware | st | stm32l451rc | - | No |
| Hardware | st | stm32l451re | - | No |
| Hardware | st | stm32l451vc | - | No |
| Hardware | st | stm32l451ve | - | No |
| Hardware | st | stm32l452cc | - | No |
| Hardware | st | stm32l452ce | - | No |
| Hardware | st | stm32l452rc | - | No |
| Hardware | st | stm32l452re | - | No |
| Hardware | st | stm32l452vc | - | No |
| Hardware | st | stm32l452ve | - | No |
| Hardware | st | stm32l462ce | - | No |
| Hardware | st | stm32l462re | - | No |
| Hardware | st | stm32l462ve | - | No |
| Hardware | st | stm32l471qe | - | No |
| Hardware | st | stm32l471qg | - | No |
| Hardware | st | stm32l471re | - | No |
| Hardware | st | stm32l471rg | - | No |
| Hardware | st | stm32l471ve | - | No |
| Hardware | st | stm32l471vg | - | No |
| Hardware | st | stm32l471ze | - | No |
| Hardware | st | stm32l471zg | - | No |
| Hardware | st | stm32l475rc | - | No |
| Hardware | st | stm32l475re | - | No |
| Hardware | st | stm32l475rg | - | No |
| Hardware | st | stm32l475vc | - | No |
| Hardware | st | stm32l475ve | - | No |
| Hardware | st | stm32l475vg | - | No |
| Hardware | st | stm32l476je | - | No |
| Hardware | st | stm32l476jg | - | No |
| Hardware | st | stm32l476me | - | No |
| Hardware | st | stm32l476mg | - | No |
| Hardware | st | stm32l476qe | - | No |
| Hardware | st | stm32l476qg | - | No |
| Hardware | st | stm32l476rc | - | No |
| Hardware | st | stm32l476re | - | No |
| Hardware | st | stm32l476rg | - | No |
| Hardware | st | stm32l476vc | - | No |
| Hardware | st | stm32l476ve | - | No |
| Hardware | st | stm32l476vg | - | No |
| Hardware | st | stm32l476ze | - | No |
| Hardware | st | stm32l476zg | - | No |
| Hardware | st | stm32l486jg | - | No |
| Hardware | st | stm32l486qg | - | No |
| Hardware | st | stm32l486rg | - | No |
| Hardware | st | stm32l486vg | - | No |
| Hardware | st | stm32l486zg | - | No |
| Hardware | st | stm32l496ae | - | No |
| Hardware | st | stm32l496ag | - | No |
| Hardware | st | stm32l496qe | - | No |
| Hardware | st | stm32l496qg | - | No |
| Hardware | st | stm32l496re | - | No |
| Hardware | st | stm32l496rg | - | No |
| Hardware | st | stm32l496ve | - | No |
| Hardware | st | stm32l496vg | - | No |
| Hardware | st | stm32l496wg | - | No |
| Hardware | st | stm32l496ze | - | No |
| Hardware | st | stm32l496zg | - | No |
| Hardware | st | stm32l4a6ag | - | No |
| Hardware | st | stm32l4a6qg | - | No |
| Hardware | st | stm32l4a6rg | - | No |
| Hardware | st | stm32l4a6vg | - | No |
| Hardware | st | stm32l4a6zg | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For st's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.