# A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory. CVE record · `CVE-2026-0438` - **Identifiers:** `CVE-2026-0438` - **State:** Confirmed - **Severity:** CVSS 5.4 Medium - **Critical:** No - **CNA:** AMD - **Weakness (CWE):** [CWE-1072](https://cwe.mitre.org/data/definitions/1072.html) - **Tags:** [CWE-1072](https://agentprime.io/advisories/tag/cwe-1072.md) - **Technologies:** [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™ 7045 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7045-series-mobile-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™ 9000HX Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-9000hx-series-processors.md) · [AMD Ryzen™ AI 300 Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-ai-300-series-processors.md) · [AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-pro-7000-wx-series-processors.md) · [AMD Ryzen™ 8000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-8000-series-desktop-processors.md) · [AMD Ryzen™ 9000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-9000-series-desktop-processors.md) · [AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-8040-series-mobile-processors-with-radeontm-graphics.md) · [AMD Ryzen™ AI Max 300 Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-ai-max-300-series-processors.md) · [AMD Ryzen™ Z1 Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-z1-series-processors.md) · [AMD Ryzen™ Z2 Series Processors Extreme](https://agentprime.io/advisories/technology/amd-ryzentm-z2-series-processors-extreme.md) · [AMD Ryzen™ Z2 Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-z2-series-processors.md) · [AMD Ryzen™ Threadripper™ 7000 Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-7000-processors.md) · [AMD Ryzen™ Threadripper™ 9000 Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-9000-processors.md) · [AMD Ryzen™ Threadripper™ PRO 9000 WX-Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-pro-9000-wx-series-processors.md) · [AMD Ryzen™ 7000 Series Desktop Processors (formerly codenamed "Raphael")](https://agentprime.io/advisories/technology/amd-ryzentm-7000-series-desktop-processors-formerly-codenamed-raphael.md) · [AMD Ryzen™ 8000 Series Desktop Processors (formerly codenamed "Phoenix")](https://agentprime.io/advisories/technology/amd-ryzentm-8000-series-desktop-processors-formerly-codenamed-phoenix.md) · [AMD Ryzen™ 9000 Series Desktop Processors (formerly codenamed "Granite Ridge")](https://agentprime.io/advisories/technology/amd-ryzentm-9000-series-desktop-processors-formerly-codenamed-granite-ridge.md) · [AMD Ryzen™ Embedded 9000 Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-embedded-9000-series-processors.md) - **Published:** 15 May 2026 - **Updated:** 19 May 2026 - **Reviewed by a person:** No Published by the CVE Program (CNA: AMD) at 15 May 2026, 01:41 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™ 7040 Series Mobile Processors with Radeon™ Graphics. - unaffected: `PhoenixPI-FP8-FP7_1.2.0.0f` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics. - unaffected: `DragonRangeFL1PI 1.0.0.3k` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7000 Series Desktop Processors. - unaffected: `ComboAM5PI 1.0.0.d` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 9000HX Series Processors. - unaffected: `FireRangeFL1PI 1.0.0.0d` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ AI 300 Series Processors. - unaffected: `StrixKrackanPI-FP8_1.1.0.0e` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors. - unaffected: `StormPeakPI-SP6 1.0.0.1m` - unaffected: `StormPeakPI-SP6_1.1.0.0k` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7000 Series Desktop Processors. - unaffected: `ComboAM5PI 1.1.0.3f` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7000 Series Desktop Processors. - unaffected: `ComboAM5PI_1.2.0.3i` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 8000 Series Desktop Processors. - unaffected: `ComboAM5PI 1.1.0.3f` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 8000 Series Desktop Processors. - unaffected: `ComboAM5PI_1.2.0.3i` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 9000 Series Desktop Processors. - unaffected: `ComboAM5PI_1.2.0.3i` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 8040 Series Mobile Processors with Radeon™ Graphics. - unaffected: `PhoenixPI-FP8-FP7_1.2.0.0f` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ AI Max 300 Series Processors. - unaffected: `StrixHaloPI-FP11_1.0.0.2a` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Z1 Series Processors. - unaffected: `PhoenixPI-FP8-FP7_1.2.0.0f` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Z1 Series Processors. - unaffected: `PhoenixPI-FP8-FP7_1.2.0.0f` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Z2 Series Processors Extreme. - unaffected: `StrixKrackanPI-FP8_1.1.0.2d` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Z2 Series Processors. - unaffected: `PhoenixPI-FP8-FP7_1.2.0.0f` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors. - unaffected: `ShimadaPeakPI-SP6 1.0.0.1c` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ 7000 Processors. - unaffected: `ShimadaPeakPI-SP6 1.0.0.1c` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ 9000 Processors. - unaffected: `ShimadaPeakPI-SP6 1.0.0.1c` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 9000 WX-Series Processors. - unaffected: `ShimadaPeakPI-SP6 1.0.0.1c` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7000 Series Desktop Processors (formerly codenamed "Raphael"). - unaffected: `ComboAM5PI_1.3.0.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 8000 Series Desktop Processors (formerly codenamed "Phoenix"). - unaffected: `ComboAM5PI_1.3.0.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 9000 Series Desktop Processors (formerly codenamed "Granite Ridge"). - unaffected: `ComboAM5PI_1.3.0.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded 9000 Series Processors. - unaffected: `EmbeddedAM5PI 1.0.0.5` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded 8000 Series Processors. - unaffected: `EmbeddedPhoenixPI-FP7r2_1.0.0.4` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded 7000 Series Processors. - unaffected: `EmbeddedAM5PI 1.0.0.5` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ 4004 Series Processors. - unaffected: `ComboAM5PI 1.0.0.d / ComboAM5PI 1.1.0.3f / ComboAM5PI_1.2.0.3i` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ 4005 Series Processors. - unaffected: `ComboAM5PI_1.2.0.3i` - 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 - 5.4 Medium, CVSS 4.0: `CVSS:4.0/AV:P/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`, 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 15 May 2026. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2026-0438](https://www.cve.org/CVERecord?id=CVE-2026-0438) - [NVD: CVE-2026-0438](https://nvd.nist.gov/vuln/detail/CVE-2026-0438) ### 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: .