CVE-2021-46749 is a denial-of-service vulnerability affecting AMD Secure Processors (ASP) due to insufficient bounds checking during System Management Interface (SMI) mailbox checksum calculation. This flaw can lead to an out-of-bounds read, triggering a data abort and rendering the system unavailable. Rated with a CVSS score of 7.5 (HIGH), this vulnerability is remotely exploitable with low attack complexity and no user interaction required, exclusively impacting system availability. There is currently no evidence of active exploitation, nor are public exploit tools like Metasploit or ExploitDB available. The vulnerability has received minimal community discussion and 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:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.8CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5300ge_firmware:cezannepi-fp6_1.0.0.8:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.8CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5500_firmware:cezannepi-fp6_1.0.0.8:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.8CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5600_firmware:cezannepi-fp6_1.0.0.8:*:*:*:*:*:*:* | ||
cezannepi-fp6_1.0.0.8CPE matchmatch criteria | cpe:2.3:o:amd:ryzen_5600g_firmware:cezannepi-fp6_1.0.0.8:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/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, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.