Vulnerability · NVD

CVE-2026-45458

CVE-2026-45458, high severity (CVSS 8.4): 2 tracked apps concerned, all fixed or indeterminable on their current version.

Severity (CVSS): 8.4
Exploitation: 0.4 %
Tracked apps: 2
Still exposed: 0

Published on 2026-06-09

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

Attack vector : Local No privileges required No user interaction

Show raw CVSS vector

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

EPSS 0.45% exploit very unlikely percentile 37.3%

Tracked apps referencing this CVE

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

Microsoft Word macOS com.microsoft.Word

Affected - Fixed in - Latest tracked 16.114 undetermined
Office Windows winget:Microsoft.Office

Affected - Fixed in - Latest tracked - undetermined

NVD references 7 distinct products for this CVE : only those tracked by Scout (mobile and desktop catalog apps) are listed above. Libraries, servers and out-of-scope products do not appear here. Full list on NVD ↗

Vulnerable CPE configurations (4)

Vendor	Product	Platform	Versions	CPE 2.3 URI
microsoft	word All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:word:2016::::::x64:
microsoft	word All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:word:2016::::::x64:
microsoft	word All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:word:2016::::::x86:
microsoft	word All platforms (wildcard)	All platforms (wildcard)	-	cpe:2.3:a:microsoft:word:2016::::::x86:

View on NVD ↗ Advisory · msrc.microsoft.com

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