{"cve":"CVE-2021-26317","nvd":{"published":"2022-05-12T19:15:48.070","modified":"2026-06-17T03:43:06.413","status":"Modified","description":"Failure to verify the protocol in SMM may allow an attacker to control the protocol and modify SPI flash resulting in a potential arbitrary code execution.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027","https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027"],"products":["amd:athlon_3050ge_firmware","amd:athlon_3150g_firmware","amd:athlon_3150ge_firmware","amd:radeon_software","amd:ryzen_3_2200u_firmware","amd:ryzen_3_2300u_firmware","amd:ryzen_3_3100_firmware","amd:ryzen_3_3300g_firmware","amd:ryzen_3_3300x_firmware","amd:ryzen_3_5125c_firmware","amd:ryzen_3_5400u_firmware","amd:ryzen_3_5425c_firmware","amd:ryzen_3_5425u_firmware","amd:ryzen_5300g_firmware","amd:ryzen_5300ge_firmware","amd:ryzen_5600g_firmware","amd:ryzen_5600ge_firmware","amd:ryzen_5600x_firmware","amd:ryzen_5700g_firmware","amd:ryzen_5700ge_firmware","amd:ryzen_5800x3d_firmware","amd:ryzen_5800x_firmware","amd:ryzen_5900x_firmware","amd:ryzen_5950x_firmware","amd:ryzen_5_2500u_firmware","amd:ryzen_5_2600_firmware","amd:ryzen_5_2600h_firmware","amd:ryzen_5_2600x_firmware","amd:ryzen_5_3400g_firmware","amd:ryzen_5_3450g_firmware","amd:ryzen_5_3600_firmware","amd:ryzen_5_3600x_firmware","amd:ryzen_5_5560u_firmware","amd:ryzen_5_5600h_firmware","amd:ryzen_5_5600hs_firmware","amd:ryzen_5_5600u_firmware","amd:ryzen_5_5600x_firmware","amd:ryzen_5_5625c_firmware","amd:ryzen_5_5625u_firmware","amd:ryzen_5_5700g_firmware","amd:ryzen_5_5700ge_firmware","amd:ryzen_7_2700_firmware","amd:ryzen_7_2700u_firmware","amd:ryzen_7_2700x_firmware","amd:ryzen_7_2800h_firmware","amd:ryzen_7_3700x_firmware","amd:ryzen_7_3800x_firmware","amd:ryzen_7_5800h_firmware","amd:ryzen_7_5800hs_firmware","amd:ryzen_7_5800u_firmware"],"source":"nvd","synced_at":"2026-10-19T21:31:59.322382750+00:00"},"epss":{"cve":"CVE-2021-26317","score":0.00285,"percentile":0.21086,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}