Unauthenticated network information disclosure
Published Aug 12, 2025 · Updated Feb 13, 2026
Information exposure in Microsoft Exchange Server allows remote attackers to disclose sensitive information over a network. Microsoft has not published the affected component or the operation that mishandles data and causes the disclosure. No authentication or user interaction is required, and the documented consequence is limited to confidentiality.
Summary
What happened
Information exposure in Microsoft Exchange Server allows remote attackers to disclose sensitive information over a network. Microsoft has not published the affected component or the operation that mishandles data and causes the disclosure. No authentication or user interaction is required, and the documented consequence is limited to confidentiality.
The record
- CVE
- CVE-2025-33051
- Published
- Aug 12, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Microsoft Exchange Server 2019 Cumulative Update 14
- Classifications
- CWE-200
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 12, 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=15.02.0.0 <15.02.1544.033
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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