Vulnerability · Published Sep 8, 2026 · Assigned by microsoft
CVE-2026-69610Windows Win32k Elevation of Privilege Vulnerability
High 7.0
In plain English
A high-severity security flaw in Microsoft Office 365 for Mac from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)7.0High
Exploit odds (30 days)0.3%top 81.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Buffer over-read in Windows Win32K allows an authorized attacker to elevate privileges locally.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Office 365 for Mac | 1.0.0 – before 16.112.26090911 |
| Microsoft | Microsoft Office LTSC for Mac 2021 | 16.0.1 – before 16.112.26090911 |
| Microsoft | Microsoft Office LTSC for Mac 2024 | 16.0.0 – before 16.112.26090911 |
Weakness: CWE-126 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Windows Win32k Elevation of Privilege Vulnerability vendor-advisory, patch