Code execution via document-triggered integer overflow
Published Aug 8, 2023 · Updated Aug 10, 2026
Integer overflow in Microsoft Office Visio allows remote attackers to execute code when a user opens a crafted Visio file. Microsoft identifies an integer overflow or wraparound but has not disclosed the affected parser, calculation, or malformed field. Exploitation requires user interaction and runs code in the context of the user who opens the file, exposing that account's data and applications.
Summary
What happened
Integer overflow in Microsoft Office Visio allows remote attackers to execute code when a user opens a crafted Visio file. Microsoft identifies an integer overflow or wraparound but has not disclosed the affected parser, calculation, or malformed field. Exploitation requires user interaction and runs code in the context of the user who opens the file, exposing that account's data and applications.
The record
- CVE
- CVE-2023-35372
- Published
- Aug 8, 2023
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Microsoft Visio 2016
- Classifications
- CWE-190, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 8, 2023CVE 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=16.0.1 <5439.1000
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.
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Technologies
Your stack
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Your stack
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