Code execution via PICT heap out-of-bounds write
Published Jun 5, 2023 · Updated Jul 10, 2025
Heap-based buffer overflow in Microsoft Office allows remote attackers to execute code when a user opens a crafted SketchUp file. The Office 3D component passes an abnormal PICT image embedded in an MFC-type SKP file to FreeImage, whose parsing writes beyond a heap buffer. Exploitation requires user interaction, and resulting code runs in that user's security context with access limited by the account's permissions.
Summary
What happened
Heap-based buffer overflow in Microsoft Office allows remote attackers to execute code when a user opens a crafted SketchUp file. The Office 3D component passes an abnormal PICT image embedded in an MFC-type SKP file to FreeImage, whose parsing writes beyond a heap buffer. Exploitation requires user interaction, and resulting code runs in that user's security context with access limited by the account's permissions.
The record
- CVE
- CVE-2023-29344
- Published
- Jun 5, 2023
- Updated
- Jul 10, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2021
- Classifications
- CWE-122, T1203, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 5, 2023CVE publishedPublication date reported by the CVE source.
- Jul 10, 2025Record 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 <16.73.23051401
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
- CVE-2023-29344 MFC-type SKP proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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