Local security feature bypass
Published Jul 8, 2025 · Updated Feb 13, 2026
Security feature bypass in Microsoft 365 Apps for enterprise allows local users to bypass protection through a risky cryptographic algorithm. Microsoft has not disclosed the affected cryptographic operation, algorithm, or data path in the Office Developer Platform. Exploitation requires low local privileges, high complexity, and user interaction, and can expose or alter limited data without interrupting service.
Summary
What happened
Security feature bypass in Microsoft 365 Apps for enterprise allows local users to bypass protection through a risky cryptographic algorithm. Microsoft has not disclosed the affected cryptographic operation, algorithm, or data path in the Office Developer Platform. Exploitation requires low local privileges, high complexity, and user interaction, and can expose or alter limited data without interrupting service.
The record
- CVE
- CVE-2025-49756
- Published
- Jul 8, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Microsoft 365 Apps for enterprise
- Classifications
- CWE-327
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 8, 2025CVE publishedPublication date reported by the CVE source.
- Feb 13, 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?
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.
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Technologies
Your stack
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Your stack
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