What is CVE-2026-118288?

CVE-2026-118288 is a high-severity vulnerability in Microsoft Azure File Sync, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.0/10. Published 2026-11-10.

How severe is CVE-2026-118288?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Microsoft Azure File Sync

CVE-2026-118288

Incorrect permission assignment for critical resource in Azure File Sync allows an authorized attacker to elevate privileges locally.

Published 2026-11-10 · last modified 2026-11-10.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

CWE-732 — Incorrect Permission Assignment for Critical Resource

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118288 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-118288?: CVE-2026-118288 is a high-severity vulnerability in Microsoft Azure File Sync, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.0/10. Published 2026-11-10.
How severe is CVE-2026-118288?: High severity. CVSS v3 base score is 7.0 out of 10.