Code execution via malformed EMF+ rectangle processing
Published May 13, 2025 · Updated Feb 26, 2026
Heap-based buffer overflow in Microsoft Windows and Office allows remote attackers to execute code when a user opens a crafted EMF+ metafile. GDI+ SetTSClipEPR::Play accepts invalid RECT objects from an EmfPlusSetTSClip record, letting later rendering operations access memory outside a heap buffer. Exploitation requires user interaction with attacker-controlled content and can execute code in the affected application's context.
Summary
What happened
Heap-based buffer overflow in Microsoft Windows and Office allows remote attackers to execute code when a user opens a crafted EMF+ metafile. GDI+ SetTSClipEPR::Play accepts invalid RECT objects from an EmfPlusSetTSClip record, letting later rendering operations access memory outside a heap buffer. Exploitation requires user interaction with attacker-controlled content and can execute code in the affected application's context.
The record
- CVE
- CVE-2025-30388
- Published
- May 13, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-122, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 13, 2025CVE publishedPublication date reported by the CVE source.
- Feb 26, 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=16.0.0 <16.97.25042725
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
- Check Point EMF+ crash sampleproof of concept · demonstrated
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