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CVE-2022-23820

30
FAUCET Score

CVE-2022-23820 is a critical vulnerability affecting AMD products, stemming from a failure to validate the AMD SMM communication buffer. This flaw allows an unauthenticated attacker to corrupt System Management RAM (SMRAM) over the network with low attack complexity, potentially leading to arbitrary code execution. The vulnerability carries a CVSS score of 9.8 (Critical) and a FAUCET Risk Score of 92/100, indicating a severe impact. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, with 10 mentions.

Impacted Technologies

VendorProductVersion(s)CPE
comboam4_pi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:ryzen_9_3900_firmware:comboam4_pi_1.0.0.9:*:*:*:*:*:*:*
comboam4_v2_pi_1.2.0.8CPE matchmatch criteria
cpe:2.3:o:amd:ryzen_9_3900_firmware:comboam4_v2_pi_1.2.0.8:*:*:*:*:*:*:*
comboam4_pi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:ryzen_9_3900x_firmware:comboam4_pi_1.0.0.9:*:*:*:*:*:*:*
comboam4_v2_pi_1.2.0.8CPE matchmatch criteria
cpe:2.3:o:amd:ryzen_9_3900x_firmware:comboam4_v2_pi_1.2.0.8:*:*:*:*:*:*:*
comboam4_pi_1.0.0.9CPE matchmatch criteria
cpe:2.3:o:amd:ryzen_9_3900xt_firmware:comboam4_pi_1.0.0.9:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 31st 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-3002
Vendor Advisory
amd.com / en/corporate/product-security/bulletin/AMD-SB-4002
Vendor Advisory
amd.com / en/corporate/product-security/bulletin/AMD-SB-5001