Information disclosure via undisclosed integer overflow
Published Sep 8, 2026 · Updated Sep 10, 2026
Information disclosure in Microsoft Office Word allows remote attackers to read process memory when a user opens a crafted document. Microsoft identifies an integer overflow or wraparound and an out-of-bounds read, but has not disclosed the affected parser, data structure, or arithmetic operation. Exploitation requires user interaction; the reported consequence is information disclosure only, without integrity or availability impact.
Summary
What happened
Information disclosure in Microsoft Office Word allows remote attackers to read process memory when a user opens a crafted document. Microsoft identifies an integer overflow or wraparound and an out-of-bounds read, but has not disclosed the affected parser, data structure, or arithmetic operation. Exploitation requires user interaction; the reported consequence is information disclosure only, without integrity or availability impact.
The record
- CVE
- CVE-2026-69734
- Published
- Sep 8, 2026
- Updated
- Sep 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-125, CWE-190, T1204.002
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 8, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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