# Stack-based buffer overflow in 2nd Gen AMD EPYC™ Processors and others CVE record · `CVE-2023-20577` - **Identifiers:** `CVE-2023-20577` - **State:** Confirmed - **Severity:** CVSS 7.4 High - **Critical:** No - **CNA:** AMD - **Weakness (CWE):** [CWE-121](https://cwe.mitre.org/data/definitions/121.html) - **Tags:** [Memory corruption](https://agentprime.io/advisories/tag/memory-corruption.md) - **Technologies:** [2nd Gen AMD EPYC™ Processors](https://agentprime.io/advisories/technology/2nd-gen-amd-epyctm-processors.md) · [3rd Gen AMD EPYC™ Processors](https://agentprime.io/advisories/technology/3rd-gen-amd-epyctm-processors.md) · [4th Gen AMD EPYC™ Processors](https://agentprime.io/advisories/technology/4th-gen-amd-epyctm-processors.md) · [AMD Instinct™ MI300A](https://agentprime.io/advisories/technology/amd-instincttm-mi300a.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 Processors with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-5000-series-desktop-processors-with-radeontm-graphics.md) · [AMD Ryzen™ 7000 Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-7000-series-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™ 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 3000WX Series Processors](https://agentprime.io/advisories/technology/amd-ryzentm-threadrippertm-pro-3000wx-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 Processor with Radeon™ Graphics](https://agentprime.io/advisories/technology/amd-ryzentm-3000-series-mobile-processor-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) - **Published:** 2 Sept 2026 - **Updated:** 3 Nov 2026 - **Reviewed by a person:** No Published by the CVE Program (CNA: AMD) at 2 Sept 2026, 19:57 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: 2nd Gen AMD EPYC™ Processors. - unaffected: `RomePI 1.0.0.H` - Other versions: affected - Vendor: AMD. Product: 3rd Gen AMD EPYC™ Processors. - unaffected: `MilanPI 1.0.0.C` - Other versions: affected - Vendor: AMD. Product: 4th Gen AMD EPYC™ Processors. - unaffected: `GenoaPI 1.0.0.8` - Other versions: affected - Vendor: AMD. Product: AMD Instinct™ MI300A. - unaffected: `MI300 SR5 PI 1.0.0.1` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Desktop Processors. - unaffected: `ComboAM4v2 1.2.0.B` - unaffected: `ComboAM4 1.0.0.B` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Desktop Processors. - unaffected: `ComboAM4v2 1.2.0.B` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics. - unaffected: `ComboAM4v2 1.2.0.B` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7000 Series Processors. - unaffected: `ComboAM5 1.0.0.7b` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics. - unaffected: `ComboAM4v2 1.2.0.B` - unaffected: `ComboAM4 1.0.0.B` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics. - unaffected: `ComboAM4v2 1.2.0.B` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ 3000 Series Processors. - unaffected: `CastlePeakPI-SP3r3 1.0.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors. - unaffected: `ChagallWSPI-sWRX8 1.0.0.7` - unaffected: `CastlePeakWSPI-sWRX8 1.0.0.C` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Threadripper™ PRO 5000WX Processors. - unaffected: `ChagallWSPI-sWRX8 1.0.0.7` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `PicassoPI-FP5 1.0.1.0` - Other versions: affected - Vendor: AMD. Product: AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `PollockPI-FT5 1.0.0.6` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics. - unaffected: `PicassoPI-FP5 1.0.1.0` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `RenoirPI-FP6 1.0.0.D` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6 1.0.0.F` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6 1.0.0.F` - 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™ 6000 Series Processors with Radeon™ Graphics. - unaffected: `RembrandtPI-FP7 1.0.0.9b` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics. - unaffected: `RembrandtPI-FP7 1.0.0.9b` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6 1.0.0.F` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics. - unaffected: `CezannePI-FP6 1.0.0.F` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics. - unaffected: `PhoenixPI-FP8-FP7 1.0.0.2` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ 7045 Series Mobile Processors. - unaffected: `DragonRangeFL1PI 1.0.0.3a` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ Embedded 3000. - unaffected: `Snowyowl PI 1.1.0.B` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ Embedded 7002. - unaffected: `EmbRomePI-SP3 1.0.0.B` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ Embedded 7003. - unaffected: `EmbMilanPI-SP3 1.0.0.8` - Other versions: affected - Vendor: AMD. Product: AMD EPYC™ Embedded 9003. - unaffected: `EmbGenoaPI-SP5 1.0.0.3` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded R1000. - unaffected: `EmbeddedPI-FP5 1.2.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded R2000. - unaffected: `EmbeddedPI-FP5 1.0.0.2` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded 5000. - unaffected: `EmbAM4PI 1.0.0.4` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V1000. - unaffected: `EmbeddedPI-FP5 1.2.0.A` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V2000. - unaffected: `EmbeddedPI-FP6 1.0.0.9` - Other versions: affected - Vendor: AMD. Product: AMD Ryzen™ Embedded V3000. - unaffected: `EmbeddedPI-FP7r2 1.0.0.8` - 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 - 7.4 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (AMD) - **CISA KEV:** Not listed. - **EPSS:** 0.0015, the 4th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days. ## Timeline - 2 Sept 2026, 19:57 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2023-20577) ## Sources - [CVE List: CVE-2023-20577](https://www.cve.org/CVERecord?id=CVE-2023-20577) - [NVD: CVE-2023-20577](https://nvd.nist.gov/vuln/detail/CVE-2023-20577) ### 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: .