What is CVE-2025-29823?

CVE-2025-29823 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Microsoft Excel Remote Code Execution Vulnerability

Which CVE IDs does CVE-2025-29823 cover?

CVE-2025-29823 covers the following CVE IDs: CVE-2025-29823. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2025-29823?

CVE-2025-29823 has a CVSS v3 base score of 7.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2025-29823?

CVE-2025-29823 affects 2 products, including: Microsoft 365 Apps for Enterprise for 32-bit Systems; Microsoft 365 Apps for Enterprise for 64-bit Systems.

CVE-2025-29823HighCVSS 7.8

Microsoft Excel Remote Code Execution Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

April 8, 2025

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2025-29823 →

📋 Description

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

🎯 Affected products2

Microsoft 365 Apps for Enterprise for 32-bit Systems
Microsoft 365 Apps for Enterprise for 64-bit Systems

✅ Remediation

KBClick to Run (Security Update) — fixed build https://aka.ms/OfficeSecurityReleases

🔗 References (2)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-29823
referencehttps://docs.microsoft.com/en-us/officeupdates/office365-proplus-security-updates