Code execution via undisclosed use-after-free
Published Sep 9, 2025 · Updated Sep 9, 2025
Use-after-free in Microsoft Office Excel allows attackers to execute arbitrary code locally after required user interaction. Microsoft has not disclosed the affected Excel code path, the object whose lifetime ends prematurely, or the input that triggers reuse of the freed memory. Exploitation requires interaction with attacker-controlled content and executes code in the affected user context; no network-only path is reported.
Summary
What happened
Use-after-free in Microsoft Office Excel allows attackers to execute arbitrary code locally after required user interaction. Microsoft has not disclosed the affected Excel code path, the object whose lifetime ends prematurely, or the input that triggers reuse of the freed memory. Exploitation requires interaction with attacker-controlled content and executes code in the affected user context; no network-only path is reported.
The record
- CVE
- CVE-2025-54896
- Published
- Sep 9, 2025
- Updated
- Sep 9, 2025
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC for Mac 2024
- Classifications
- CWE-416
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 9, 2025CVE publishedPublication date reported by the CVE source.
- Sep 9, 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?
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- Affected versionversion=N/A
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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