CVE-2021-46792 is a Time-of-check Time-of-use (TOCTOU) vulnerability affecting AMD products, specifically within the BIOS2PSP command. A malicious BIOS can exploit this race condition during an S3 resume event, causing the ASP bootloader to perform out-of-bounds SRAM reads, leading to a denial of service. This vulnerability has a CVSS score of 5.9 (Medium) due to its high attack complexity, despite being network-exploitable without user interaction. Currently, there is no public exploit code available, no evidence of active exploitation, and minimal community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
cezannepi-fp6_1.0.0.6CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5300g_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.6CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5300ge_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.6CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5500_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.6CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5600_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.6CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5600g_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.