Information Disclosure Vulnerability in Windows SMB by Microsoft
CVE-2025-29956

5.4MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
13 May 2025
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What is CVE-2025-29956?

A buffer over-read vulnerability exists in Windows SMB (Server Message Block), which could allow an authorized attacker to access sensitive information across a network. By exploiting this vulnerability, an attacker could potentially disclose data that should remain confidential, creating risks for both users and organizations. It is essential for users of affected Windows versions to review security practices and apply relevant updates to mitigate this risk.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.21014

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.8066

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7314

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-29956 : Information Disclosure Vulnerability in Windows SMB by Microsoft