Code execution via undisclosed heap buffer overflow
Published Aug 13, 2024 · Updated Jul 10, 2025
Heap-based buffer overflow in Microsoft Excel in affected Office releases allows attackers to execute code after a user opens a crafted file. Microsoft has not published the affected parser locus or the incorrect operation that corrupts heap memory. Successful exploitation requires user interaction and can compromise confidentiality, integrity, and availability in the user's context.
Summary
What happened
Heap-based buffer overflow in Microsoft Excel in affected Office releases allows attackers to execute code after a user opens a crafted file. Microsoft has not published the affected parser locus or the incorrect operation that corrupts heap memory. Successful exploitation requires user interaction and can compromise confidentiality, integrity, and availability in the user's context.
The record
- CVE
- CVE-2024-38172
- Published
- Aug 13, 2024
- Updated
- Jul 10, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2021
- Classifications
- CWE-122, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 13, 2024CVE 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
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=16.0.1 <16.88.24081116
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
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Your stack
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