CVE-2023-20520

high-risk
Published 2023-05-09

Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overrun potentially leading to arbitrary code execution.

Do I need to act?

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0.44% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Vendors

Amd
61
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 27/34 · High