{"cve":"CVE-2021-26351","nvd":{"published":"2022-05-12T18:16:53.043","modified":"2026-06-17T03:43:12.577","status":"Modified","description":"Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-20"],"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: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_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_3700x_firmware","amd:ryzen_7_3800x_firmware","amd:ryzen_7_5800h_firmware","amd:ryzen_7_5800hs_firmware","amd:ryzen_7_5800u_firmware","amd:ryzen_7_5825c_firmware","amd:ryzen_7_5825u_firmware","amd:ryzen_9_3900x_firmware","amd:ryzen_9_3950x_firmware","amd:ryzen_9_5900hs_firmware","amd:ryzen_9_5900hx_firmware","amd:ryzen_9_5980hs_firmware","amd:ryzen_9_5980hx_firmware","amd:ryzen_threadripper_2920x_firmware","amd:ryzen_threadripper_2950x_firmware","amd:ryzen_threadripper_2970wx_firmware","amd:ryzen_threadripper_2990wx_firmware","amd:ryzen_threadripper_3960x_firmware","amd:ryzen_threadripper_3970x_firmware","amd:ryzen_threadripper_3990x_firmware","amd:ryzen_threadripper_pro_3945wx_firmware","amd:ryzen_threadripper_pro_3955wx_firmware","amd:ryzen_threadripper_pro_3975wx_firmware","amd:ryzen_threadripper_pro_3995wx_firmware","amd:ryzen_threadripper_pro_5945wx_firmware","amd:ryzen_threadripper_pro_5955wx_firmware","amd:ryzen_threadripper_pro_5965wx_firmware","amd:ryzen_threadripper_pro_5975wx_firmware","amd:ryzen_threadripper_pro_5995wx_firmware"],"source":"nvd","synced_at":"2026-10-19T21:31:59.322382750+00:00"},"epss":{"cve":"CVE-2021-26351","score":0.00212,"percentile":0.11455,"date":"2026-11-01"},"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."]}