CVE-2021-46759 describes an improper syscall input validation vulnerability within the AMD Trusted Execution Environment (TEE), specifically impacting AMD products. An attacker with physical access and control over a user application running under the bootloader could expose the contents of the AMD Secure Processor (ASP) bootloader's accessible memory via a serial port, leading to a potential loss of integrity. This vulnerability has a CVSS score of 6.1 (Medium), indicating a physical attack vector with low complexity and high impact on integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
cezannepi-fp6_1.0.0.8CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5300g_firmware:cezannepi-fp6_1.0.0.8:*:*:*:*:*:*:* | ||
comboam4v2_pi_1.2.0.5CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5300g_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.8CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5300ge_firmware:cezannepi-fp6_1.0.0.8:*:*:*:*:*:*:* | ||
comboam4v2_pi_1.2.0.5CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5300ge_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.8CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5500_firmware:cezannepi-fp6_1.0.0.8:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.