# Improper input validation in the system management mode (SMM) could allow a privileged attacker to overwrite arbitrary memory potentially resulting in arbitrary code execution at the SMM level. CVE record · `CVE-2024-21947` - **Identifiers:** `CVE-2024-21947` - **State:** Confirmed - **Severity:** CVSS 7.5 High - **Critical:** No - **CNA:** AMD - **Weakness (CWE):** [CWE-1220](https://cwe.mitre.org/data/definitions/1220.html) - **Tags:** [CWE-1220](https://agentprime.io/advisories/tag/cwe-1220.md) - **Technologies:** [AMD Ryzen™ Threadripper™ 3000 Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-3000-processors.md) · [AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-pro-5000-wx-series-processors.md) · [AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7030-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-pro-3000-wx-series-processors.md) · [AMD Ryzen™ 3000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-3000-series-desktop-processors.md) · [AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-athlontm-3000-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-3000-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 5000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-desktop-processors.md) · [AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-athlontm-3000-series-desktop-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 8000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-8000-series-desktop-processors.md) · [AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7040-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-4000-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-6000-series-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 7000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-7000-series-desktop-processors.md) · [AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7020-series-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7045-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7035-series-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-desktop-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 4000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-4000-series-desktop-processors.md) - **Published:** 6 Sept 2025 - **Updated:** 26 Feb 2026 - **Reviewed by a person:** No Published by the CVE Program (CNA: AMD) at 6 Sept 2025, 17:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. ## Affected products, as the CNA wrote them - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ 3000 Processors. - unaffected: `CastlePeakPI-SP3r3 1.0.0.C` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors. - unaffected: `ChagallWSPI-sWRX8-1.0.0.7` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6_1.0.1.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors. - unaffected: `CastlePeakWSPI-sWRX8 1.0.0.E` - unaffected: `ChagallWSPI-sWRX8-1.0.0.7` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Desktop Processors. - unaffected: `ComboAM4 1.0.0.B` - unaffected: `ComboAM4v2PI_1.2.0.CA` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `Picasso-FP5 1.0.1.1` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `Picasso-FP5 1.0.1.1` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Desktop Processors. - unaffected: `ComboAM4v2PI_1.2.0.CA` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics. - unaffected: `ComboAM4 1.0.0.B` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 8000 Series Desktop Processors. - unaffected: `ComboAM5 1.2.0.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics. - unaffected: `PhoenixPI-FP8-FP7_1.1.0.2` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `Renoir-FP6 1.0.0.D` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics. - unaffected: `Rembrandt-FP7 1.0.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7000 Series Desktop Processors. - unaffected: `ComboAM5 1.2.0.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics. - unaffected: `MendocinoPI-FT6_1.0.0.6` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics. - unaffected: `DragonRangeFL1 1.0.0.3d` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics. - unaffected: `Rembrandt-FP7 1.0.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6_1.0.1.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics. - unaffected: `ComboAM4v2PI_1.2.0.CA` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 4000 Series Desktop Processors. - unaffected: `ComboAM4v2PI_1.2.0.CA` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded R1000 Series Processors. - unaffected: `EmbeddedPI-FP5 120C` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded R2000 Series Processors. - unaffected: `EmbeddedR2KPI-FP5_1003` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded 5000 Series Processors. - unaffected: `EmbAM4PI 1.0.0.5` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V1000 Series Processors. - unaffected: `EmbeddedPI-FP5 120C` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V2000 Series Processors. - unaffected: `EmbeddedPI-FP6_1.0.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V3000 Series Processors. - unaffected: `Embedded-PI_FP7r2 1009` - Other versions: affected ## Not analysed yet We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter. ## Severity and exploitation - 7.5 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H`, from CNA (AMD) - **CISA KEV:** Not listed. - **EPSS:** 0.0014, the 3rd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline This record came from the full history of the CVE Program, published 6 Sept 2025. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2024-21947](https://www.cve.org/CVERecord?id=CVE-2024-21947) - [NVD: CVE-2024-21947](https://nvd.nist.gov/vuln/detail/CVE-2024-21947) ### References from the CNA - - Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description. ## Check whether this affects you This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run. - With the agentprime MCP server (), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: - As JSON: - Everything that needs attention now: --- The web page: . Everything for agents: .