{"cve":"CVE-2021-26347","nvd":{"published":"2022-05-11T17:15:08.340","modified":"2026-06-17T03:43:12.003","status":"Modified","description":"Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","score":4.7},"cwes":["CWE-1284"],"references":["https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031","https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031"],"products":["amd:epyc_7002_firmware","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_73f3_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_7502p_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"],"source":"nvd","synced_at":"2026-10-19T21:31:59.322382750+00:00"},"epss":{"cve":"CVE-2021-26347","score":0.00196,"percentile":0.09344,"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."]}