{"answers":{"affected":"It affects 98 products.","exploited":"There is no known exploitation of CVE-2021-26356 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-26356 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-26356 is a high-severity 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-2021-26356 and fix it if it is affected.\n\nWhat it is: CVE-2021-26356 is a high-severity 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-2021-26356 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-2021-26356/ (Markdown: https://insights.sbomify.com/CVE-2021-26356/index.md)","id":"CVE-2021-26356","markdown":"https://insights.sbomify.com/CVE-2021-26356/index.md","name":"CVE-2021-26356","record":{"aliases":["GHSA-8c2m-2hmv-32px"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"AMD EPYC/Ryzen firmware","requires_auth":"none","summary":"A time-of-check time-of-use race condition in the AMD bootloader allows attackers to tamper with SPI ROM, leading to data corruption and information disclosure.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMD","cpe":[{"product":"epyc_7001_firmware","vendor":"amd"},{"product":"epyc_7002_firmware","vendor":"amd"},{"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_72f3_firmware","vendor":"amd"},{"product":"epyc_7301_firmware","vendor":"amd"},{"product":"epyc_7302_firmware","vendor":"amd"},{"product":"epyc_7302p_firmware","vendor":"amd"},{"product":"epyc_7313_firmware","vendor":"amd"},{"product":"epyc_7313p_firmware","vendor":"amd"},{"product":"epyc_7343_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_7373x_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_7413_firmware","vendor":"amd"},{"product":"epyc_7443_firmware","vendor":"amd"},{"product":"epyc_7443p_firmware","vendor":"amd"},{"product":"epyc_7451_firmware","vendor":"amd"},{"product":"epyc_7452_firmware","vendor":"amd"},{"product":"epyc_7453_firmware","vendor":"amd"},{"product":"epyc_7473x_firmware","vendor":"amd"},{"product":"epyc_74f3_firmware","vendor":"amd"},{"product":"epyc_7501_firmware","vendor":"amd"},{"product":"epyc_7502_firmware","vendor":"amd"},{"product":"epyc_7513_firmware","vendor":"amd"},{"product":"epyc_7532_firmware","vendor":"amd"},{"product":"epyc_7542_firmware","vendor":"amd"},{"product":"epyc_7543_firmware","vendor":"amd"},{"product":"epyc_7543p_firmware","vendor":"amd"},{"product":"epyc_7551_firmware","vendor":"amd"},{"product":"epyc_7551p_firmware","vendor":"amd"},{"product":"epyc_7552_firmware","vendor":"amd"},{"product":"epyc_7573x_firmware","vendor":"amd"},{"product":"epyc_75f3_firmware","vendor":"amd"},{"product":"epyc_7601_firmware","vendor":"amd"},{"product":"epyc_7642_firmware","vendor":"amd"},{"product":"epyc_7643_firmware","vendor":"amd"},{"product":"epyc_7662_firmware","vendor":"amd"},{"product":"epyc_7663_firmware","vendor":"amd"},{"product":"epyc_7702_firmware","vendor":"amd"},{"product":"epyc_7702p_firmware","vendor":"amd"},{"product":"epyc_7713_firmware","vendor":"amd"},{"product":"epyc_7713p_firmware","vendor":"amd"},{"product":"epyc_7742_firmware","vendor":"amd"},{"product":"epyc_7763_firmware","vendor":"amd"},{"product":"epyc_7773x_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"},{"product":"ryzen_3_3100_firmware","vendor":"amd"},{"product":"ryzen_3_3300x_firmware","vendor":"amd"},{"product":"ryzen_5_3500_firmware","vendor":"amd"},{"product":"ryzen_5_3500x_firmware","vendor":"amd"},{"product":"ryzen_5_3600_firmware","vendor":"amd"},{"product":"ryzen_5_3600x_firmware","vendor":"amd"},{"product":"ryzen_5_3600xt_firmware","vendor":"amd"},{"product":"ryzen_5_5500_firmware","vendor":"amd"},{"product":"ryzen_5_5600_firmware","vendor":"amd"},{"product":"ryzen_5_5600x_firmware","vendor":"amd"},{"product":"ryzen_7_3700xt_firmware","vendor":"amd"},{"product":"ryzen_7_3800x_firmware","vendor":"amd"},{"product":"ryzen_7_3800xt_firmware","vendor":"amd"},{"product":"ryzen_7_5700x_firmware","vendor":"amd"},{"product":"ryzen_7_5800_firmware","vendor":"amd"},{"product":"ryzen_7_5800x3d_firmware","vendor":"amd"},{"product":"ryzen_7_5800x_firmware","vendor":"amd"},{"product":"ryzen_9_3900_firmware","vendor":"amd"},{"product":"ryzen_9_3900x_firmware","vendor":"amd"},{"product":"ryzen_9_3950x_firmware","vendor":"amd"},{"product":"ryzen_9_3950xt_firmware","vendor":"amd"},{"product":"ryzen_9_5900_firmware","vendor":"amd"},{"product":"ryzen_9_5900x_firmware","vendor":"amd"},{"product":"ryzen_9_5950x_firmware","vendor":"amd"},{"product":"ryzen_threadripper_3960x_firmware","vendor":"amd"},{"product":"ryzen_threadripper_3970x_firmware","vendor":"amd"},{"product":"ryzen_threadripper_3990x_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_3945wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_3955wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_3975wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_3995wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_5945wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_5955wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_5965wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_5975wx_firmware","vendor":"amd"},{"product":"ryzen_threadripper_pro_5995wx_firmware","vendor":"amd"}],"cvss":{"score":7.4,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"A TOCTOU in ASP bootloader may allow an attacker\nto tamper with the SPI ROM following data read to memory potentially resulting\nin S3 data corruption and information disclosure.","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":"Race condition in 1st Gen AMD EPYC™ Processors","id":"CVE-2021-26356","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_72f3_firmware","amd:epyc_7302_firmware","amd:epyc_7302p_firmware","amd:epyc_7313_firmware","amd:epyc_7313p_firmware","amd:epyc_7343_firmware","amd:epyc_7352_firmware","amd:epyc_7373x_firmware","amd:epyc_7402_firmware","amd:epyc_7402p_firmware","amd:epyc_7413_firmware","amd:epyc_7443_firmware","amd:epyc_7443p_firmware","amd:epyc_7452_firmware","amd:epyc_7453_firmware","amd:epyc_7473x_firmware","amd:epyc_74f3_firmware","amd:epyc_7502_firmware","amd:epyc_7513_firmware","amd:epyc_7532_firmware","amd:epyc_7542_firmware","amd:epyc_7543_firmware","amd:epyc_7543p_firmware","amd:epyc_7552_firmware","amd:epyc_7573x_firmware","amd:epyc_75f3_firmware","amd:epyc_7642_firmware","amd:epyc_7643_firmware","amd:epyc_7662_firmware","amd:epyc_7663_firmware","amd:epyc_7702_firmware","amd:epyc_7702p_firmware","amd:epyc_7713_firmware","amd:epyc_7713p_firmware","amd:epyc_7742_firmware","amd:epyc_7763_firmware","amd:epyc_7773x_firmware","amd:epyc_7f32_firmware","amd:epyc_7f52_firmware","amd:epyc_7f72_firmware","amd:epyc_7h12_firmware"],"type":"race_condition","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2021-26357"},"packages":[],"prev":{"headline":"Denial of service in 3rd Gen EPYC","id":"CVE-2021-26355"},"products":["1st Gen AMD EPYC™ Processors","2nd Gen AMD EPYC™ Processors","3rd Gen AMD EPYC™ Processors","3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT","AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4","Ryzen™ 3000 Series Desktop Processors “Matisse” AM4","Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS","Ryzen™ Threadripper™ PRO Processors “Chagall” WS"],"published":"2023-05-09","related":[{"cvss_score":8.4,"headline":"A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation","id":"CVE-2021-26340","kev_date_added":null,"published":"2021-12-10"},{"cvss_score":7.8,"headline":"Memory corruption in 1st Gen EPYC","id":"CVE-2021-26398","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":7.8,"headline":"Code injection in 1st Gen AMD EPYC™","id":"CVE-2021-26331","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":7.8,"headline":"Code injection in Athlon™ Series","id":"CVE-2021-26335","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":7.5,"headline":"Race condition in AMD EPYC™ 7001 Processors","id":"CVE-2023-20578","kev_date_added":null,"published":"2024-08-13"},{"cvss_score":7.5,"headline":"Denial of service in 1st/2nd/3rd Gen AMD EPYC™ Processors","id":"CVE-2020-12988","kev_date_added":null,"published":"2021-06-11"}],"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":"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":"2025-01-28","vendors":["AMD"]},"summary":"A time-of-check time-of-use race condition in the AMD bootloader allows attackers to tamper with SPI ROM, leading to data corruption and information disclosure.","url":"https://insights.sbomify.com/CVE-2021-26356/"}