{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2023-20577 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-20577 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-20577 is a high-severity memory corruption vulnerability in 2nd Gen AMD EPYC™ Processors, published on 2 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-20577 and fix it if it is affected.\n\nWhat it is: CVE-2023-20577 is a high-severity memory corruption vulnerability in 2nd Gen AMD EPYC™ Processors, published on 2 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2023-20577 in the wild and no public exploit code.\n\nAffected product: 2nd Gen AMD EPYC™ Processors. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-20577/ (Markdown: https://insights.sbomify.com/CVE-2023-20577/index.md)","id":"CVE-2023-20577","markdown":"https://insights.sbomify.com/CVE-2023-20577/index.md","name":"CVE-2023-20577","record":{"aliases":["GHSA-hp78-wv22-mhmg"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"AMD EPYC/Ryzen firmware","requires_auth":"none","summary":"Heap overflow in AMD SMM module allows arbitrary code execution if combined with SPI flash write access.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMD","cpe":[],"cvss":{"score":7.4,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Memory corruption in 2nd Gen AMD EPYC™ Processors","id":"CVE-2023-20577","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Race condition in AMD EPYC™ 7001 Processors","id":"CVE-2023-20578"},"packages":[],"prev":{"headline":"Security feature bypass in AMD Ryzen™ 3000 Series Desktop Processors","id":"CVE-2023-20576"},"products":["2nd Gen AMD EPYC™ Processors","3rd Gen AMD EPYC™ Processors","4th Gen AMD EPYC™ Processors","AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics","AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics","AMD EPYC™ Embedded 3000","AMD EPYC™ Embedded 7002","AMD EPYC™ Embedded 7003","AMD EPYC™ Embedded 9003","AMD Instinct™ MI300A","AMD Ryzen™ 3000 Series Desktop Processors","AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics","AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics","AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics","AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics","AMD Ryzen™ 5000 Series Desktop Processors","AMD Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics","AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics","AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics","AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics","AMD Ryzen™ 7000 Series Processors","AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics","AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics","AMD Ryzen™ 7040 Series Processors with Radeon™ Graphics","AMD Ryzen™ 7045 Series Mobile Processors","AMD Ryzen™ Embedded 5000","AMD Ryzen™ Embedded R1000","AMD Ryzen™ Embedded R2000","AMD Ryzen™ Embedded V1000","AMD Ryzen™ Embedded V2000","AMD Ryzen™ Embedded V3000","AMD Ryzen™ Threadripper™ 3000 Series Processors","AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors","AMD Ryzen™ Threadripper™ PRO 5000WX Processors"],"published":"2026-09-02","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-04","vendors":["AMD"]},"summary":"Heap overflow in AMD SMM module allows arbitrary code execution if combined with SPI flash write access.","url":"https://insights.sbomify.com/CVE-2023-20577/"}