CVE-2023-20520

Description

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.31%
Vendor Advisory amd.com
Affected: AMD 1st Gen AMD EPYC™
Affected: AMD 2nd Gen AMD EPYC™
Affected: AMD 3rd Gen AMD EPYC™
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-20520?
CVE-2023-20520 has been scored as a critical severity vulnerability.
How to fix CVE-2023-20520?
To fix CVE-2023-20520, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-20520 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-20520 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-20520?
CVE-2023-20520 affects AMD 1st Gen AMD EPYC™ , AMD 2nd Gen AMD EPYC™ , AMD 3rd Gen AMD EPYC™ .
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