Local code execution via use-after-free
Published Sep 9, 2025 · Updated Sep 9, 2025
Use-after-free in Microsoft Office PowerPoint allows attackers to execute code locally after a user opens a crafted presentation. Microsoft identifies a freed-memory reuse error in PowerPoint but has not disclosed the affected parser, object type, or precise malformed input that triggers it. Successful exploitation requires user interaction and runs attacker-controlled code in the user's security context, permitting data access, modification, and service interruption.
Summary
What happened
Use-after-free in Microsoft Office PowerPoint allows attackers to execute code locally after a user opens a crafted presentation. Microsoft identifies a freed-memory reuse error in PowerPoint but has not disclosed the affected parser, object type, or precise malformed input that triggers it. Successful exploitation requires user interaction and runs attacker-controlled code in the user's security context, permitting data access, modification, and service interruption.
The record
- CVE
- CVE-2025-54908
- Published
- Sep 9, 2025
- Updated
- Sep 9, 2025
- Vendor
- Microsoft
- Product
- Microsoft PowerPoint 2016
- Classifications
- CWE-416, T1204.002
- 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=16.0.0 <16.0.5517.1000
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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