What’s Vulnerable › Vulnerabilities

CVE-2025-53732: Microsoft Office Remote Code Execution Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-12 · updated 2026-06-17
• Weakness: CWE-122

Description

Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

Affected products

• Microsoft 365 Copilot: before 16.0.19127.20000 — fixed in 16.0.19127.20000
• Microsoft Office: before 16.0.14326.22618 — fixed in 16.0.14326.22618
• Microsoft Office for Android: from 16.0.1 before 16.0.19127.20000 — fixed in 16.0.19127.20000
• Microsoft Office for Universal: from 16.0.1 before 16.0.14326.22618 — fixed in 16.0.14326.22618

How to fix

Upgrade to a fixed version: Microsoft 365 Copilot 16.0.19127.20000; Microsoft Office 16.0.14326.22618; Microsoft Office for Android 16.0.19127.20000; Microsoft Office for Universal 16.0.14326.22618. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53732

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