Vulnerability · NVD

CVE-2026-40418

CVE-2026-40418, high severity (CVSS 7.8): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 7.8
Exploitation: 0.3 %
Tracked apps: 2
Still exposed: 0

Published on 2026-05-12

Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

Attack vector : Local No user interaction

Show raw CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS 0.25% exploit very unlikely percentile 16.8%

Tracked apps referencing this CVE

For each app: the affected range, the fixing version, and where the tracked app stands today.

Microsoft Office macOS brew:cask:microsoft-office

Affected - Fixed in - Latest tracked 16.112.26082125 undetermined
Microsoft Office Windows winget:Microsoft.Office

Affected - Fixed in - Latest tracked - undetermined

Vulnerable CPE configurations (12)

Vendor	Product	Platform	Versions	CPE 2.3 URI
microsoft	office All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office:2019::::::x64:
microsoft	office All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office:2019::::::x64:
microsoft	office All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office:2019::::::x86:
microsoft	office All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office:2019::::::x86:
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x64:*
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x64:*
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x86:*
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2021:::::-:x86:*
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x64:*
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x64:*
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x86:*
microsoft	office_long_term_servicing_channel All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:office_long_term_servicing_channel:2024:::::-:x86:*

View on NVD ↗ Advisory · msrc.microsoft.com