What is CVE-2026-65680?

CVE-2026-65680 is a medium-severity vulnerability in Microsoft Onedrive, classified under Improper Link Resolution Before File Access. CVSS score: 6.7/10. Published 2026-08-11.

How severe is CVE-2026-65680?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Microsoft Onedrive

CVE-2026-65680

Improper link resolution before file access ('link following') in Microsoft OneDrive allows an authorized attacker to elevate privileges locally.

Published 2026-08-11 · last modified 2026-08-17.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (30.1th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Microsoft Onedrive
Microsoft Onedrive For macOS — versions 26.0.0.0

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

Microsoft OneDrive for MacOS Elevation of Privilege Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-65680?: CVE-2026-65680 is a medium-severity vulnerability in Microsoft Onedrive, classified under Improper Link Resolution Before File Access. CVSS score: 6.7/10. Published 2026-08-11.
How severe is CVE-2026-65680?: Medium severity. CVSS v3 base score is 6.7 out of 10.