Vulnerability Intelligence Report
CVE-2023-20576
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.
No Active Exploit Signals
CVSS Base Score
7.7
HIGH
Exploitability:2.6
Impact Score:5.2
EPSS Probability:0.12%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-345 ↗CWE-345 Insufficient Verification of Data Authenticity
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | ComboAM4v2 1.2.0.B (unaffected) |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | ComboAM4v2v 1.2.0.B (unaffected) |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 1.2.0.B (unaffected) |
| AMD | AMD Ryzen™ 7000 Series Processors | ComboAM5 1.0.0.7b (unaffected) |
| AMD | AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics | ComboAM4v2 1.2.0.B (unaffected) |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000WX Processors | ChagallWSPI-sWRX8 1.0.0.7 (unaffected) |
| AMD | AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics | MendocinoPI-FT6 1.0.0.6 (unaffected) |
| AMD | AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.9b (unaffected) |
| AMD | AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics | RembrandtPI-FP7 1.0.0.9b (unaffected) |
| AMD | AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics | PhoenixPI-FP8-FP7 1.0.0.2 (unaffected) |
| AMD | AMD Ryzen™ 7045 Series Mobile Processors | DragonRangeFL1PI 1.0.0.3a (unaffected) |
| AMD | AMD Ryzen™ Embedded 5000 | EmbAM4PI 1.0.0.4 (unaffected) |
| AMD | AMD Ryzen™ Embedded V3000 | EmbeddedPI-FP7r2 1.0.0.8 (unaffected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.125%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Advanced Micro Devices Inc. · Vendor · USA |
| Reserved | 2022-10-27T18:53:39 |
| Published | 2026-09-02T19:42:04 |
| Last Updated | 2026-09-04T19:56:20 |
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