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CVE-2023-20562

20
FAUCET Score

CVE-2023-20562 is a high-severity vulnerability in AMD uProf, affecting both Windows and Linux systems. It stems from insufficient validation of IOCTL input buffers, allowing an authenticated user to load an unsigned driver. This could lead to arbitrary kernel execution, granting an attacker full control over the compromised system. The vulnerability has a CVSS score of 7.8 (High), indicating a local attack vector with low complexity, requiring low privileges, and having high impacts on confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, nor is public exploit code available on platforms like Metasploit or ExploitDB. The vulnerability has also received minimal community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.1.396CPE matchmatch criteria
cpe:2.3:a:amd:amd_uprof:*:*:*:*:*:*:*:*
< 4.1-424CPE matchmatch criteria
cpe:2.3:a:amd:amd_uprof:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.15%
Probability of exploitation in next 30 days
EPSS Percentile
63.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0115 is in the 93rd percentile among its peer group of 16,994 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 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

Vendor Advisories (1)

redhatCVE-2023-20562Important

hw: amd: uProf allow unsigned driver to load

Aug 8, 2023

References

amd.com / en/corporate/product-security/bulletin/AMD-SB-7003
PatchVendor Advisory