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CVE-2021-46762

28
FAUCET Score

CVE-2021-46762 is a critical vulnerability affecting AMD products, stemming from insufficient input validation in the System Management Unit (SMU). This flaw allows an unauthenticated attacker to corrupt SMU SRAM over the network with low attack complexity, potentially leading to a complete loss of integrity or denial of service. While no active exploitation or public exploit code is currently known, the vulnerability has garnered significant community discussion, indicating awareness within the cybersecurity landscape.

Impacted Technologies

VendorProductVersion(s)CPE
milanpi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:epyc_72f3_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
milanpi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:epyc_7313_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
milanpi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:epyc_7313p_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
milanpi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:epyc_7343_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
milanpi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:epyc_7373x_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.9LOW

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
0.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 5th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

amd.com / en/corporate/product-security/bulletin/AMD-SB-3001
Vendor Advisory
amd.com / en/corporate/product-security/bulletin/AMD-SB-5001