What’s Vulnerable › Vulnerabilities
CVE-2021-26387
- Severity: low (CVSS 3.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-08-13 · updated 2026-06-17
- Weakness: CWE-863
Description
Insufficient access controls in ASP kernel may allow a privileged attacker with access to AMD signing keys and the BIOS menu or UEFI shell to map DRAM regions in protected areas, potentially leading to a loss of platform integrity.
Affected products
- AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics: all versions
- AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics: all versions
- AMD EPYC™ 7001 Series Processors: various
- AMD EPYC™ 7002 Series Processors: various
- AMD EPYC™ 7003 Series Processors: various
- AMD EPYC™ 9004 Series Processors: various
- AMD EPYC™ Embedded 3000 Series Processors: various
- AMD EPYC™ Embedded 7002 Series Processors: various
- AMD EPYC™ Embedded 7003 Series Processors: various
- AMD EPYC™ Embedded 9003 Series Processors: various
- AMD Ryzen™ 3000 Series Desktop Processors: all versions
- AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics: all versions
- AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics: all versions
- AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics: all versions
- AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics: all versions
- AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics: all versions
- AMD Ryzen™ 5000 Series Desktop Processors: all versions
- AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics: all versions
- AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics: all versions
- AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics: all versions
- AMD Ryzen™ 7000 Series Desktop Processors: all versions
- AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics: all versions
- AMD Ryzen™ Embedded 5000 Series Processors: all versions
- AMD Ryzen™ Embedded R1000 Series Processors: all versions
- AMD Ryzen™ Embedded R2000 Series Processors: all versions
- AMD Ryzen™ Embedded V1000 Series Processors: all versions
- AMD Ryzen™ Embedded V2000 Series Processors: all versions
- AMD Ryzen™ Embedded V3000 Series Processors: all versions
- AMD Ryzen™ Threadripper™ 3000 Series Processors: all versions
- AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors: all versions
References
- https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3003.html
- https://www.amd.com/en/resources/product-security/bulletin/amd-sb-5002.html
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