CVE & CISA-KEV Catalog

CVE-2023-20599

HIGH
7.9
CVSS v3
NVD

Description

Improper register access control in ASP may allow a privileged attacker to perform unauthorized access to ASP’s Crypto Co-Processor (CCP) registers from x86 resulting in potential loss of control of cryptographic key pointer/index leading to loss of integrity or confidentiality.

CWE-1262

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredHigh
User InteractionNone
ScopeChanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityNone

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

Exploit Intelligence

0.16%probability of exploitation in 30 days
5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references1
Embed a live status badge for CVE-2023-20599
CVE-2023-20599 severity badge

Markdown

[![CVE-2023-20599](https://tridentstack.com/cve/badge/CVE-2023-20599.svg)](https://tridentstack.com/cve/CVE-2023-20599)

HTML

<a href="https://tridentstack.com/cve/CVE-2023-20599"><img src="https://tridentstack.com/cve/badge/CVE-2023-20599.svg" alt="CVE-2023-20599"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-21.