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High 7.7Published Sep 2, 2026
CVE-2023-20576Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation.
Updated under an hour ago ()
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It affects AMD Ryzen™ 3000 Series Desktop Processors and 12 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.7 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Weakness (CWE)
- CWE-345
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- AMD
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
AMD AMD Ryzen™ 3000 Series Desktop Processors amd:ryzentm_3000_series_desktop_processors (from the name) | ComboAM4v2 1.2.0.B not affected | CNA record |
AMD AMD Ryzen™ 5000 Series Desktop Processors amd:ryzentm_5000_series_desktop_processors (from the name) | ComboAM4v2v 1.2.0.B not affected | CNA record |
AMD AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics amd:ryzentm_5000_series_desktop_processors_with_radeontm_graphics (from the name) | ComboAM4v2 1.2.0.B not affected | CNA record |
AMD AMD Ryzen™ 7000 Series Processors amd:ryzentm_7000_series_processors (from the name) | ComboAM5 1.0.0.7b not affected | CNA record |
AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics amd:ryzentm_4000_series_desktop_processors_with_radeontm_graphics (from the name) | ComboAM4v2 1.2.0.B not affected | CNA record |
AMD AMD Ryzen™ Threadripper™ PRO 5000WX Processors amd:ryzentm_threadrippertm_pro_5000wx_processors (from the name) | ChagallWSPI-sWRX8 1.0.0.7 not affected | CNA record |
AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics amd:ryzentm_7020_series_processors_with_radeontm_graphics (from the name) | MendocinoPI-FT6 1.0.0.6 not affected | CNA record |
AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics amd:ryzentm_6000_series_processors_with_radeontm_graphics (from the name) | RembrandtPI-FP7 1.0.0.9b not affected | CNA record |
AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics amd:ryzentm_7035_series_processors_with_radeontm_graphics (from the name) | RembrandtPI-FP7 1.0.0.9b not affected | CNA record |
AMD AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics amd:ryzentm_7040_series_processors_with_radeontm_graphics (from the name) | PhoenixPI-FP8-FP7 1.0.0.2 not affected | CNA record |
AMD AMD Ryzen™ 7045 Series Mobile Processors amd:ryzentm_7045_series_mobile_processors (from the name) | DragonRangeFL1PI 1.0.0.3a not affected | CNA record |
AMD AMD Ryzen™ Embedded 5000 amd:ryzentm_embedded_5000 (from the name) | EmbAM4PI 1.0.0.4 not affected | CNA record |
AMD AMD Ryzen™ Embedded V3000 amd:ryzentm_embedded_v3000 (from the name) | EmbeddedPI-FP7r2 1.0.0.8 not affected | CNA record |
References
- https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7009.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.