{"answers":{"affected":"It affects 40 products.","exploited":"There is no known exploitation of CVE-2021-26406 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-26406 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-26406 is a high-severity denial of service vulnerability in Amd Epyc 7232p Firmware, published on 9 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-26406 and fix it if it is affected.\n\nWhat it is: CVE-2021-26406 is a high-severity denial of service vulnerability in Amd Epyc 7232p Firmware, published on 9 May 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-26406 in the wild and no public exploit code.\n\nAffected product: Amd Epyc 7232p Firmware. 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-2021-26406/ (Markdown: https://insights.sbomify.com/CVE-2021-26406/index.md)","id":"CVE-2021-26406","markdown":"https://insights.sbomify.com/CVE-2021-26406/index.md","name":"CVE-2021-26406","record":{"aliases":["GHSA-r2pm-cwg9-cpwh"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"AMD SEV firmware","requires_auth":"none","summary":"Insufficient validation in AMD SEV certificate parsing allows attackers to crash the host, causing denial of service on affected AMD processors.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMD","cpe":[{"product":"epyc_7232p_firmware","vendor":"amd"},{"product":"epyc_7251_firmware","vendor":"amd"},{"product":"epyc_7252_firmware","vendor":"amd"},{"product":"epyc_7261_firmware","vendor":"amd"},{"product":"epyc_7262_firmware","vendor":"amd"},{"product":"epyc_7272_firmware","vendor":"amd"},{"product":"epyc_7281_firmware","vendor":"amd"},{"product":"epyc_7282_firmware","vendor":"amd"},{"product":"epyc_7301_firmware","vendor":"amd"},{"product":"epyc_7302_firmware","vendor":"amd"},{"product":"epyc_7302p_firmware","vendor":"amd"},{"product":"epyc_7351_firmware","vendor":"amd"},{"product":"epyc_7351p_firmware","vendor":"amd"},{"product":"epyc_7352_firmware","vendor":"amd"},{"product":"epyc_7371_firmware","vendor":"amd"},{"product":"epyc_7401_firmware","vendor":"amd"},{"product":"epyc_7401p_firmware","vendor":"amd"},{"product":"epyc_7402_firmware","vendor":"amd"},{"product":"epyc_7402p_firmware","vendor":"amd"},{"product":"epyc_7451_firmware","vendor":"amd"},{"product":"epyc_7452_firmware","vendor":"amd"},{"product":"epyc_7501_firmware","vendor":"amd"},{"product":"epyc_7502_firmware","vendor":"amd"},{"product":"epyc_7502p_firmware","vendor":"amd"},{"product":"epyc_7532_firmware","vendor":"amd"},{"product":"epyc_7542_firmware","vendor":"amd"},{"product":"epyc_7551_firmware","vendor":"amd"},{"product":"epyc_7551p_firmware","vendor":"amd"},{"product":"epyc_7552_firmware","vendor":"amd"},{"product":"epyc_7571_firmware","vendor":"amd"},{"product":"epyc_7601_firmware","vendor":"amd"},{"product":"epyc_7642_firmware","vendor":"amd"},{"product":"epyc_7662_firmware","vendor":"amd"},{"product":"epyc_7702_firmware","vendor":"amd"},{"product":"epyc_7702p_firmware","vendor":"amd"},{"product":"epyc_7742_firmware","vendor":"amd"},{"product":"epyc_7f32_firmware","vendor":"amd"},{"product":"epyc_7f52_firmware","vendor":"amd"},{"product":"epyc_7f72_firmware","vendor":"amd"},{"product":"epyc_7h12_firmware","vendor":"amd"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[],"description":"Insufficient validation in parsing Owner's\nCertificate Authority (OCA) certificates in SEV (AMD Secure Encrypted Virtualization)\nand SEV-ES user application can lead to a host crash potentially resulting in\ndenial of service.","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":"Denial of service in 1st Gen AMD EPYC™ Processors","id":"CVE-2021-26406","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"amd:epyc_7232p_firmware","products":["amd:epyc_7232p_firmware","amd:epyc_7252_firmware","amd:epyc_7262_firmware","amd:epyc_7272_firmware","amd:epyc_7282_firmware","amd:epyc_7302_firmware","amd:epyc_7302p_firmware","amd:epyc_7352_firmware","amd:epyc_7402_firmware","amd:epyc_7402p_firmware","amd:epyc_7452_firmware","amd:epyc_7502_firmware","amd:epyc_7502p_firmware","amd:epyc_7532_firmware","amd:epyc_7542_firmware","amd:epyc_7552_firmware","amd:epyc_7642_firmware","amd:epyc_7662_firmware","amd:epyc_7702_firmware","amd:epyc_7702p_firmware","amd:epyc_7742_firmware","amd:epyc_7f32_firmware","amd:epyc_7f52_firmware","amd:epyc_7f72_firmware","amd:epyc_7h12_firmware"],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Weak cryptography in 2nd Gen EPYC","id":"CVE-2021-26407"},"packages":[],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-26405"},"products":["1st Gen AMD EPYC™ Processors","2nd Gen AMD EPYC™ Processors","2nd Gen AMD Ryzen™ Threadripper™ Processors “Colfax”","3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT","AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4","Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics   “Pollock”","Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULP","Ryzen™ 2000 Series Desktop Processors “Pinnacle Ridge”","Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5","Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4","Ryzen™ 3000 Series Desktop Processors “Matisse” AM4","Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”","Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS"],"published":"2023-05-09","related":[{"cvss_score":9.8,"headline":"Memory corruption in 2nd Gen AMD EPYC™","id":"CVE-2021-26379","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":9.8,"headline":"Memory corruption in 1st Gen AMD EPYC™","id":"CVE-2023-20520","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":9.1,"headline":"Denial of service in 1st Gen AMD EPYC™ Processors","id":"CVE-2021-46756","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":8.8,"headline":"Other in 2nd Gen AMD EPYC™","id":"CVE-2021-46769","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":7.8,"headline":"Memory corruption in Athlon™ Series","id":"CVE-2020-12944","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":7.8,"headline":"Memory corruption in 3rd Gen AMD EPYC™","id":"CVE-2021-26323","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":7.8,"headline":"Memory corruption in 3rd Gen AMD EPYC™","id":"CVE-2021-26326","kev_date_added":null,"published":"2021-11-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-01-28","vendors":["AMD"]},"summary":"Insufficient validation in AMD SEV certificate parsing allows attackers to crash the host, causing denial of service on affected AMD processors.","url":"https://insights.sbomify.com/CVE-2021-26406/"}