{"schemaVersion":3,"id":"CVE-2021-21556","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Dell PowerEdge R640, R740, R740XD, R840, R940, R940xa, MX740c, MX840c, and T640 Server BIOS contain a stack-based buffer overflow vulnerability in systems with NVDIMM-N installed. 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