{"id":"CVE-2021-46753","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-46753","generatedAt":"2026-10-27T19:05:14.991Z","title":"Failure to validate the length fields of the ASP (AMD Secure Processor) sensor fusion hub headers may allow an attacker with a malicious Uapp or ABL to map the ASP sensor fusion hub region and overwrite data structures leading to a potential loss of…","description":"Failure to validate the length fields of the ASP\n(AMD Secure Processor) sensor fusion hub headers may allow an attacker with a\nmalicious Uapp or ABL to map the ASP sensor fusion hub region and overwrite\ndata structures leading to a potential loss of confidentiality and integrity.\n\n\n\n\n","published":"2023-05-09T19:15:11.000Z","lastModified":"2026-06-17T04:15:27.000Z","status":"Modified","sourceIdentifier":"psirt@amd.com","cvss":{"version":"3.1","score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"cwe":[],"affected":["amd/ryzen 6600h firmware","amd/ryzen 6600hs firmware","amd/ryzen 6600u firmware","amd/ryzen 6800h firmware","amd/ryzen 6800hs firmware","amd/ryzen 6800u firmware","amd/ryzen 6900hs firmware","amd/ryzen 6900hx firmware","amd/ryzen 6980hs firmware","amd/ryzen 6980hx firmware","amd/ryzen 5300g firmware","amd/ryzen 5300ge firmware","amd/ryzen 5500 firmware","amd/ryzen 5600 firmware","amd/ryzen 5600g firmware","amd/ryzen 5600ge firmware","amd/ryzen 5600x firmware","amd/ryzen 5700g firmware","amd/ryzen 5700ge firmware","amd/ryzen 5700x firmware","amd/ryzen 5800 firmware","amd/ryzen 5800x3d firmware","amd/ryzen 5800x firmware","amd/ryzen 5900 firmware","amd/ryzen 5900x firmware","amd/ryzen 5945wx firmware","amd/ryzen 5950x firmware","amd/ryzen 5955wx firmware","amd/ryzen 5965wx firmware","amd/ryzen 5975wx firmware","amd/ryzen 5995wx firmware","amd/ryzen 3100 firmware","amd/ryzen 3300x firmware","amd/ryzen 3500 firmware","amd/ryzen 3500x firmware","amd/ryzen 3600 firmware","amd/ryzen 3600x firmware","amd/ryzen 3600xt firmware","amd/ryzen 3800x firmware","amd/ryzen 3800xt firmware","amd/ryzen 3900 firmware","amd/ryzen 3900x firmware","amd/ryzen 3900xt firmware","amd/ryzen 3950x firmware","amd/ryzen 1200 \\(af\\) firmware","amd/ryzen 1600 \\(af\\) firmware","amd/ryzen 2200g firmware","amd/ryzen 2200ge firmware","amd/ryzen 2300x firmware","amd/ryzen 2400g firmware","amd/ryzen 2400ge firmware","amd/ryzen 2500x firmware","amd/ryzen 2600 firmware","amd/ryzen 2600e firmware","amd/ryzen 2600x firmware","amd/ryzen 2700 firmware","amd/ryzen 2700e firmware","amd/ryzen 2700x firmware","amd/ryzen 2920x firmware","amd/ryzen 2950x firmware"],"epss":{"score":0.0056,"percentile":0.46334,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001","tags":["Vendor Advisory"],"source":"psirt@amd.com"},{"url":"https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-46753","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}