Local code execution via heap buffer overflow
Published Aug 12, 2025 · Updated Feb 26, 2026
Heap-based buffer overflow in Microsoft Office for Android and Universal allows local users to execute code after user interaction. Microsoft has not disclosed the affected parser or memory-copy operation, so the precise untrusted input and out-of-bounds heap write remain unspecified. Successful exploitation requires user interaction and executes code in the affected application's security context.
Summary
What happened
Heap-based buffer overflow in Microsoft Office for Android and Universal allows local users to execute code after user interaction. Microsoft has not disclosed the affected parser or memory-copy operation, so the precise untrusted input and out-of-bounds heap write remain unspecified. Successful exploitation requires user interaction and executes code in the affected application's security context.
The record
- CVE
- CVE-2025-53732
- Published
- Aug 12, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office for Android
- Classifications
- CWE-122, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 12, 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=16.0.1 <16.0.19127.20000
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.
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Technologies
Your stack
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Your stack
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