{"id":"CVE-2021-26362","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-26362","generatedAt":"2026-10-28T02:58:44.775Z","title":"A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System Management Network (SMN) registers leading to a loss of integrity and availability.","description":"A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System Management Network (SMN) registers leading to a loss of integrity and availability.","published":"2022-05-12T18:16:53.000Z","lastModified":"2026-06-17T03:43:14.000Z","status":"Modified","sourceIdentifier":"psirt@amd.com","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"},"cwe":[],"affected":["amd/radeon software","amd/ryzen 3 2200u firmware","amd/ryzen 3 2300u firmware","amd/ryzen 3 5125c firmware","amd/ryzen 3 5400u firmware","amd/athlon 3050ge firmware","amd/athlon 3150ge firmware","amd/athlon 3150g firmware","amd/ryzen 3 5425c firmware","amd/ryzen 3 5425u firmware","amd/ryzen 5 2500u firmware","amd/ryzen 5 2600 firmware","amd/ryzen 5 2600h firmware","amd/ryzen 5 2600x 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 2700u firmware","amd/ryzen 7 2700 firmware","amd/ryzen 7 2700x firmware","amd/ryzen 7 2800h 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 5980hx firmware","amd/ryzen 9 5980hs firmware","amd/ryzen 9 5900hx firmware","amd/ryzen 9 5900hs firmware"],"epss":{"score":0.00218,"percentile":0.12115,"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 (0.22%). 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-1027","tags":["Vendor Advisory"],"source":"psirt@amd.com"},{"url":"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26362","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."}