Local privilege escalation
Published Apr 8, 2025 · Updated Aug 10, 2026
Improper access control in Microsoft Office 2016 before 16.0.5495.1000 allows local users to elevate privileges on x64 systems. Microsoft has not published the affected component or the access-control operation that mishandles an authorized user's request. Exploitation requires existing local low-privilege access, and successful abuse grants higher privileges with confidentiality, integrity, and availability consequences.
Summary
What happened
Improper access control in Microsoft Office 2016 before 16.0.5495.1000 allows local users to elevate privileges on x64 systems. Microsoft has not published the affected component or the access-control operation that mishandles an authorized user's request. Exploitation requires existing local low-privilege access, and successful abuse grants higher privileges with confidentiality, integrity, and availability consequences.
The record
- CVE
- CVE-2025-27744
- Published
- Apr 8, 2025
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office 2016
- Classifications
- CWE-284, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 8, 2025CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.0.5495.1000
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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