CWE-1328 (Security Version Number Mutable to Older Versions) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.
Security-version number in hardware is mutable, resulting in the ability to downgrade (roll-back) the boot firmware to vulnerable code versions.
| Kind | Name | Class | Prevalence | OS / CPE |
|---|---|---|---|---|
| language | — | Not Language-Specific | Undetermined | — |
| operating_system | — | Not OS-Specific | Undetermined | — |
| architecture | — | Not Architecture-Specific | Undetermined | — |
| technology | Security Hardware | — | Undetermined | — |
| technology | — | Not Technology-Specific | Undetermined | — |
These CVEs are mapped to this weakness in this database and kept for traceability and search.
| CVE | Published | Summary |
|---|---|---|
| CVE-2025-8321 | 2025-07-30 | Tesla Wall Connector Firmware Downgrade Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Tesla Wall Connector devices. Authe… |
| CVE-2025-5825 | 2025-06-25 | Autel MaxiCharger AC Wallbox Commercial Firmware Downgrade Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations… |
| CVE-2025-29989 | 2025-04-10 | Dell Client Platform BIOS contains a Security Version Number Mutable to Older Versions vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading… |
| CVE-2024-13870 | 2025-03-12 | An improper access control vulnerability exists in Bitdefender Box 1 (firmware version 1.3.52.928 and below) that allows an unauthenticated attacker to downgrade the device's firmware to an older, pot… |
| CVE-2023-50738 | 2025-01-17 | A new feature to prevent Firmware downgrades was recently added to some Lexmark products. A method to override this downgrade protection has been identified. |
| Date | Name | Version | Importance | Comment |
|---|---|---|---|---|
| 2021-07-20 | CWE Content Team | 4.5 | — | updated Related_Attack_Patterns |
| 2021-10-28 | CWE Content Team | 4.6 | — | updated Demonstrative_Examples |
| 2022-04-28 | CWE Content Team | 4.7 | — | updated Applicable_Platforms |
| 2022-06-28 | CWE Content Team | 4.8 | — | updated Applicable_Platforms |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Weakness_Ordinalities |