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CVE-2023-20520

UNKNOWN
Published 2023-05-09T18:36:29.141Z
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Expert Analysis

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CVSS Score

V3.1
9.8
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.003
probability
of exploitation in the wild

There is a 0.3% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.538
Higher than 53.8% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

AMD

1st Gen AMD EPYC™

Affected Versions:

various
AMD

2nd Gen AMD EPYC™

Affected Versions:

various
AMD

3rd Gen AMD EPYC™

Affected Versions:

various

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed CRITICAL

GHSA-wmqm-rr3q-7g8h

Advisory Details

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.

CVSS Scoring

CVSS Score

9.0

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-20520
WEB https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001

Advisory provided by GitHub Security Advisory Database. Published: May 9, 2023, Modified: April 4, 2024

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3001
Published: 2023-05-09T18:36:29.141Z
Last Modified: 2025-01-28T15:54:22.503Z
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