Authenticated information disclosure via integer overflow
Published Aug 12, 2025 · Updated Feb 13, 2026
Integer overflow in Windows Distributed Transaction Coordinator allows remote authenticated users to disclose information over a network. Microsoft identifies the weakness in MSDTC but has not disclosed the affected routine, input field, or arithmetic operation. Network DTC access and valid authorization are required; exploitation discloses information without reported integrity or availability impact.
Summary
What happened
Integer overflow in Windows Distributed Transaction Coordinator allows remote authenticated users to disclose information over a network. Microsoft identifies the weakness in MSDTC but has not disclosed the affected routine, input field, or arithmetic operation. Network DTC access and valid authorization are required; exploitation discloses information without reported integrity or availability impact.
The record
- CVE
- CVE-2025-50166
- Published
- Aug 12, 2025
- Updated
- Feb 13, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-190
- Attack vector
- network
- Privileges
- authenticated
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?
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- Affected versionversion=10.0.10240.0 <10.0.10240.21100
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.
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Technologies
Your stack
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Your stack
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