Local code execution via use-after-free
Published Aug 12, 2025 · Updated Feb 13, 2026
Use-after-free in Microsoft Office Visio allows attackers to execute code locally when a user opens attacker-supplied content. Microsoft identifies improper reuse of freed memory in Visio but has not disclosed the affected parser, object lifetime, or invalid reuse operation. User interaction is required, and successful exploitation runs attacker-controlled code in the security context of the user who opens the content.
Summary
What happened
Use-after-free in Microsoft Office Visio allows attackers to execute code locally when a user opens attacker-supplied content. Microsoft identifies improper reuse of freed memory in Visio but has not disclosed the affected parser, object lifetime, or invalid reuse operation. User interaction is required, and successful exploitation runs attacker-controlled code in the security context of the user who opens the content.
The record
- CVE
- CVE-2025-53730
- Published
- Aug 12, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office 2019
- Classifications
- CWE-416, T1203
- 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=19.0.0 <https://aka.ms/OfficeSecurityReleases
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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