Local code execution via use-after-free
Published Jul 8, 2025 · Updated Feb 26, 2026
Use-after-free in Microsoft Office products allows local users to execute code after required interaction by another user. Microsoft has not published the affected Office component, the object whose lifetime is mishandled, or the operation that reuses freed memory. Exploitation requires no privileges but does require user interaction and high-complexity preparation; successful exploitation executes attacker-controlled code in the affected application's context.
Summary
What happened
Use-after-free in Microsoft Office products allows local users to execute code after required interaction by another user. Microsoft has not published the affected Office component, the object whose lifetime is mishandled, or the operation that reuses freed memory. Exploitation requires no privileges but does require user interaction and high-complexity preparation; successful exploitation executes attacker-controlled code in the affected application's context.
The record
- CVE
- CVE-2025-49699
- Published
- Jul 8, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Microsoft PowerPoint 2016
- Classifications
- CWE-416, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 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 <16.0.5508.1000
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.
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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