{"id":"CVE-2026-4064","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-4064","generatedAt":"2026-10-28T02:09:59.925Z","title":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading…","description":"Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.","published":"2026-03-17T20:16:15.000Z","lastModified":"2026-06-17T10:55:56.000Z","status":"Analyzed","sourceIdentifier":"security@devolutions.net","cvss":{"version":"3.1","score":8.3,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L"},"cwe":["CWE-862"],"affected":["ironmansoftware/powershell universal"],"epss":{"score":0.00338,"percentile":0.26974,"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 (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://devolutions.net/security/advisories/DEVO-2026-0008","tags":["Vendor Advisory"],"source":"security@devolutions.net"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-4064","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."}