Local information disclosure via buffer over-read
Published Aug 12, 2025 · Updated Feb 13, 2026
Buffer over-read in Microsoft Office Word allows local users to disclose information through locally supplied input without authorization. Microsoft identifies an out-of-bounds read but has not published the affected parser, data structure, or malformed input that triggers it. Exploitation requires local access with no privileges or user interaction; Microsoft also records availability impact but does not identify a crash, hang, or other result.
Summary
What happened
Buffer over-read in Microsoft Office Word allows local users to disclose information through locally supplied input without authorization. Microsoft identifies an out-of-bounds read but has not published the affected parser, data structure, or malformed input that triggers it. Exploitation requires local access with no privileges or user interaction; Microsoft also records availability impact but does not identify a crash, hang, or other result.
The record
- CVE
- CVE-2025-53736
- Published
- Aug 12, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-126
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 12, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 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 <16.100.25081015
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.
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Technologies
Your stack
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Your stack
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