CVE-2021-46759Improper syscall input validation in AMD TEE (Trusted Execution Environment) may allow an attacker with physical access and control of a…
- 6.1MediumCVSS base score
- 0.28%Exploitation in 30 daysEPSS · top 79% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Improper syscall input validation in AMD TEE (Trusted Execution Environment) may allow an attacker with physical access and control of a Uapp that runs under the bootloader to reveal the contents of the ASP (AMD Secure Processor) bootloader accessible memory to a serial port, resulting in a potential loss of integrity.
Timeline
ID reserved
By AMD
- 13 months later
· 13 months later
Published
- 21 months later
· 21 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium6.1 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | Medium6.1 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.28% · top 79% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.1.
Affected products
AMD · Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4
- affected various
AMD · Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4
- affected various
AMD · Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP
- affected various
AMD · Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”
- affected various
AMD · Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5
- affected various
AMD · Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”
- affected various
AMD · Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”
- affected various
AMD · Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”
- affected various
AMD · Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”
- affected various
References
References1
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001 (opens in a new tab)vendor-advisoryx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-33415 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-46759)Record last updated .