{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2024-21977 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-21977 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-21977 is a low-severity vulnerability in AMD EPYC™ 7003 Series Processors, published on 5 Sep 2025. 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-2024-21977 and fix it if it is affected.\n\nWhat it is: CVE-2024-21977 is a low-severity vulnerability in AMD EPYC™ 7003 Series Processors, published on 5 Sep 2025. 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-2024-21977 in the wild and no public exploit code.\n\nAffected product: AMD EPYC™ 7003 Series 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-2024-21977/ (Markdown: https://insights.sbomify.com/CVE-2024-21977/index.md)","id":"CVE-2024-21977","markdown":"https://insights.sbomify.com/CVE-2024-21977/index.md","name":"CVE-2024-21977","record":{"aliases":["GHSA-hw87-hg67-xw42"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"AMD CPU microcode","requires_auth":"high_privilege","summary":"A privileged attacker can degrade RDRAND entropy via incomplete microcode cleanup, compromising SEV-SNP guest integrity on AMD processors.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMD","cpe":[],"cvss":{"score":3.2,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-459","name":"Incomplete Cleanup"}],"description":"Incomplete cleanup after loading a CPU microcode patch may allow a privileged attacker to degrade the entropy of the RDRAND instruction, potentially resulting in loss of integrity for SEV-SNP guests.","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":"Other in AMD EPYC™ 7003 Series Processors","id":"CVE-2024-21977","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2024"},"n_packages":0,"n_references":3,"next":{"headline":"Information disclosure in 3rd Gen AMD EPYC™ Processors","id":"CVE-2024-21978"},"packages":[],"prev":{"headline":"Memory corruption in AMD Ryzen™ AI Software","id":"CVE-2024-21976"},"products":["AMD EPYC™ 7003 Series Processors","AMD EPYC™ 8004 Series Processors","AMD EPYC™ 9004 Series Processors","AMD EPYC™ Embedded 7003 Series Processors","AMD EPYC™ Embedded 9004 Series Processors","AMD Ryzen™ 5000 Series Desktop Processors","AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics","AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics","AMD Ryzen™ 7000 Series Desktop Processors","AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics","AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics","AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics","AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics","AMD Ryzen™ 8000 Series Desktop Processors","AMD Ryzen™ Embedded 5000 Series Processors","AMD Ryzen™ Embedded 7000 Series Processors","AMD Ryzen™ Embedded 8000 Series Processors","AMD Ryzen™ Embedded V3000 Series Processors","AMD Ryzen™ Threadripper™ PRO 3000 WX-Series Processors","AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors"],"published":"2025-09-05","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":"partial"},"state":"PUBLISHED","updated":"2025-09-05","vendors":["AMD"]},"summary":"A privileged attacker can degrade RDRAND entropy via incomplete microcode cleanup, compromising SEV-SNP guest integrity on AMD processors.","url":"https://insights.sbomify.com/CVE-2024-21977/"}