CVE-2026-4064CWE-862
Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to…
High · published March 17, 2026
What it is
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.
The record
Technical detail
- CVSS v3.1
- 8.3 · HIGH
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
- CVSS v4.0
- Not supplied
- EPSS
- 0.00391 · 32.1th percentile
- Weakness
- CWE-862 · Missing Authorization
- Published
- 2026-03-17T19:14Z
EPSS history
Timeline