VDB-398293 · CVE-2023-20576 · GCVE-0-2023-20576

AMD Ryzen Embedded V3000 AGESA privileges management

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	3.92-

Summaryinfo

A vulnerability was found in AMD Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop Processors with Radeon Graphics, Ryzen 7000 Processors, Ryzen 4000 Desktop Processors with Radeon Graphics, Ryzen Threadripper PRO 5000WX Processors, Ryzen 7020 Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7035 Processors with Radeon Graphics, Ryzen 7040 Processors with Radeon Graphics, Ryzen 7045 Mobile Processors, Ryzen Embedded 5000 and Ryzen Embedded V3000. It has been rated as problematic. Impacted is an unknown function of the component AGESA. This manipulation causes privileges management. This vulnerability appears as CVE-2023-20576. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in AMD Ryzen 3000 Desktop Processors, Ryzen 5000 Desktop Processors, Ryzen 5000 Desktop Processors with Radeon Graphics, Ryzen 7000 Processors, Ryzen 4000 Desktop Processors with Radeon Graphics, Ryzen Threadripper PRO 5000WX Processors, Ryzen 7020 Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen 7035 Processors with Radeon Graphics, Ryzen 7040 Processors with Radeon Graphics, Ryzen 7045 Mobile Processors, Ryzen Embedded 5000 and Ryzen Embedded V3000. It has been declared as problematic. Affected by this vulnerability is an unknown function of the component AGESA. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation.

The advisory is shared at amd.com. This vulnerability is known as CVE-2023-20576 since 10/27/2022. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/02/2026). MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.7
CNA Vector (AMD): 🔒

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/27/2022 CVE reserved
09/02/2026 +1406 days Advisory disclosed
09/02/2026 +0 days VulDB entry created
09/02/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-20576 (🔒)
GCVE (CVE): GCVE-0-2023-20576
GCVE (VulDB): GCVE-100-398293

Entryinfo

Created: 09/02/2026 22:09
Changes: 09/02/2026 22:09 (60)
Complete: 🔍
Cache ID: 216::103