Code execution via undisclosed use-after-free
Published Nov 11, 2025 · Updated Feb 26, 2026
Use-after-free in Microsoft Office Word allows attackers to execute code after a target opens attacker-controlled content. Microsoft identifies Word as the affected component but has not published the object lifetime, parser path, or stale-reference operation that triggers the flaw. The user-interaction gate limits exploitation to content opened by a target, while successful code runs in that target's context.
Summary
What happened
Use-after-free in Microsoft Office Word allows attackers to execute code after a target opens attacker-controlled content. Microsoft identifies Word as the affected component but has not published the object lifetime, parser path, or stale-reference operation that triggers the flaw. The user-interaction gate limits exploitation to content opened by a target, while successful code runs in that target's context.
The record
- CVE
- CVE-2025-62205
- Published
- Nov 11, 2025
- Updated
- Feb 26, 2026
- Vendor
- Microsoft
- Product
- Microsoft Office LTSC 2021
- Classifications
- CWE-416, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 11, 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
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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 <https://aka.ms/OfficeSecurityReleases
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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