# Out-of-bounds write in AMD EPYC™ 7001 Series Processors and others CVE record · `CVE-2021-26344` - **Identifiers:** `CVE-2021-26344` - **State:** Confirmed - **Severity:** CVSS 7.2 High - **Critical:** No - **CNA:** AMD - **Weakness (CWE):** [CWE-787](https://cwe.mitre.org/data/definitions/787.html) - **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md) - **Technologies:** [AMD EPYC™ 7001 Series Processors](https://agentprime.io/advisories/technology/amd-epyctm-7001-series-processors.md) · [AMD EPYC™ 7002 Series Processors](https://agentprime.io/advisories/technology/amd-epyctm-7002-series-processors.md) · [AMD EPYC™ 7003 Series Processors](https://agentprime.io/advisories/technology/amd-epyctm-7003-series-processors.md) · [AMD Ryzen™ 3000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-3000-series-desktop-processors.md) · [AMD Ryzen™ 5000 Series Desktop Processors](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-desktop-processors.md) · [AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-desktop-processor-with-radeontm-graphics.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™ 4000 Series Desktop Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-4000-series-desktop-processors-with-radeontm-graphics.md) · [AMD Ryzen™ Threadripper™ 3000 Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-3000-series-processors.md) · [AMD Ryzen™ Threadripper™ PRO 5000WX Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-pro-5000wx-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™ 4000 Series Mobile Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-4000-series-mobile-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™ 7020 Series Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7020-series-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™ 7035 Series Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-7035-series-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-3000-series-processors-with-radeontm-graphics.md) · [AMD EPYC™ Embedded 7002 Series Processors](https://agentprime.io/advisories/technology/amd-epyctm-embedded-7002-series-processors.md) - **Published:** 13 Aug 2024 - **Updated:** 18 Mar 2025 - **Reviewed by a person:** No Published by the CVE Program (CNA: AMD) at 13 Aug 2024, 16:49 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 EPYC™ 7001 Series Processors. - affected: `various` (PI) - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ 7002 Series Processors. - unaffected: `RomePI 1.0.0.C` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ 7003 Series Processors. - unaffected: `MilanPI 1.0.0.5` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Desktop Processors. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Desktop Processors. - unaffected: `ComboAM4V2 1.2.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics. - unaffected: `ComboAM4V2 1.2.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ 3000 Series Processors. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 5000WX Processors. - unaffected: `ChagallWSPI-sWRX8 1.0.0.6` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics. - affected: `various` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6 1.0.0.E` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics. - unaffected: `MendocinoPI-FT6 1.0.0.3` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics. - unaffected: `RembrandtPI-FP7 1.0.0.7` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics. - unaffected: `RembrandtPI-FP7 1.0.0.7` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6 1.0.0.E` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6 1.0.0.E` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ Embedded 7002 Series Processors. - unaffected: `EmbRomePI-SP3 1.0.0.6` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ Embedded 3000 Series Processors. - affected: `Various` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ Embedded 7003 Series Processors. - unaffected: `EmbMilanPI-SP3 1.0.0.2` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded R1000 Series Processors. - affected: `v` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded R2000 Series Processors. - affected: `v` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded 5000 Series Processors. - affected: `v` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V1000 Series Processors. - affected: `v` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V2000 Series Processors. - affected: `v` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V3000 Series Processors. - unaffected: `EmbeddedPI-FP7r2 1.0.0.4` - 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 - 7.2 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H`, from CNA (AMD) - **CISA KEV:** Not listed. - **EPSS:** 0.0016, the 5th 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 13 Aug 2024. New records show when each source confirmed them. ## Sources - [CVE List: CVE-2021-26344](https://www.cve.org/CVERecord?id=CVE-2021-26344) - [NVD: CVE-2021-26344](https://nvd.nist.gov/vuln/detail/CVE-2021-26344) ### References from the CNA - (vendor-advisory) 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: .