{"id":"CVE-2021-26377","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-26377","generatedAt":"2026-10-28T06:36:06.859Z","title":"Insufficient parameter validation while allocating process space in the Trusted OS (TOS) may allow for a malicious userspace process to trigger an integer overflow, leading to a potential denial of service.","description":"Insufficient parameter validation while allocating process space in the Trusted OS (TOS) may allow for a malicious userspace process to trigger an integer overflow, leading to a potential denial of service.","published":"2025-09-06T16:15:30.000Z","lastModified":"2026-06-17T03:43:17.000Z","status":"Deferred","sourceIdentifier":"psirt@amd.com","cvss":{"version":"3.1","score":4.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-190"],"affected":[],"epss":{"score":0.00151,"percentile":0.04218,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.15%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-4012.html","source":"psirt@amd.com"},{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-5007.html","source":"psirt@amd.com"},{"url":"https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-6018.html","source":"psirt@amd.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26377","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."}