CVEvulnerability

CVE-2026-83586

7.8 HIGH Published 2026-10-13 Modified 2026-10-13 Official page ↗

Status: Undergoing Analysis
Published: 2026-10-13
Last modified: 2026-10-13
Assigner: [email protected]
CVSS 3.1 ([email protected]): 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-1390

Description

Weak authentication in Windows Resilient File System (ReFS) Deduplication Service allows an authorized attacker to elevate privileges locally.

Related

Weakness · CWE (1)

CWE-1390 Weak Authentication weakness

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83586 msrc.microsoft.com