Local code execution via freed-memory reuse
Published Jun 9, 2026 · Updated Jun 9, 2026
Use-after-free in supported Microsoft Office releases allows local users to execute arbitrary code through affected client applications. Microsoft identifies reuse of freed memory but does not disclose the affected parser, object lifetime error, or triggering input. No privileges or user interaction are required, and successful exploitation runs code in the affected application's security context.
Summary
What happened
Use-after-free in supported Microsoft Office releases allows local users to execute arbitrary code through affected client applications. Microsoft identifies reuse of freed memory but does not disclose the affected parser, object lifetime error, or triggering input. No privileges or user interaction are required, and successful exploitation runs code in the affected application's security context.
The record
- CVE
- CVE-2026-45472
- Published
- Jun 9, 2026
- Updated
- Jun 9, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-416, CWE-787, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 9, 2026CVE publishedPublication date reported by the CVE source.
- Jun 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=-
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo