SMB Server might be susceptible to relay attacks depending on the configuration. An attacker who successfully exploited these vulnerabilities could perform relay attacks and make the users subject to elevation of privilege attacks. The SMB Server already supports mechanisms for hardening against relay attacks: SMB Server signing SMB Server Extended Protection for Authentication (EPA) Microsoft is releasing this CVE to provide customers with audit capabilities to help them to assess their environment and to identify any potential device or software incompatibility issues before deploying SMB Server hardening measures that protect against relay attacks. If you have not already enabled SMB Server hardening measures, we advise customers to take the following actions to be protected from these relay attacks: Assess your environment by utilizing the audit capabilities that we are exposing in the September 2025 security updates. See Support for Audit Events to deploy SMB Server Hardening—SMB Server Signing & SMB Server EPA. Adopt appropriate SMB Server hardening measures.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.8, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 15 products from microsoft, from microsoft, from microsoft and 12 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2025, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2025-09-09T17:16:06.503
2025-10-17T16:15:37.910
Modified
CVSSv3.1: 8.8 (HIGH)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | microsoft | windows_10_1507 | < 10.0.10240.21128 | Yes |
| Operating System | microsoft | windows_10_1507 | < 10.0.10240.21128 | Yes |
| Operating System | microsoft | windows_10_1607 | < 10.0.14393.8422 | Yes |
| Operating System | microsoft | windows_10_1607 | < 10.0.14393.8422 | Yes |
| Operating System | microsoft | windows_10_1809 | < 10.0.17763.7792 | Yes |
| Operating System | microsoft | windows_10_1809 | < 10.0.17763.7792 | Yes |
| Operating System | microsoft | windows_10_21h2 | < 10.0.19044.6332 | Yes |
| Operating System | microsoft | windows_10_22h2 | < 10.0.19045.6332 | Yes |
| Operating System | microsoft | windows_11_22h2 | < 10.0.22621.5909 | Yes |
| Operating System | microsoft | windows_11_23h2 | < 10.0.22631.5909 | Yes |
| Operating System | microsoft | windows_11_24h2 | < 10.0.26100.6508 | Yes |
| Operating System | microsoft | windows_server_2008 | - | Yes |
| Operating System | microsoft | windows_server_2008 | - | Yes |
| Operating System | microsoft | windows_server_2008 | r2 | Yes |
| Operating System | microsoft | windows_server_2012 | - | Yes |
| Operating System | microsoft | windows_server_2012 | r2 | Yes |
| Operating System | microsoft | windows_server_2016 | < 10.0.14393.8422 | Yes |
| Operating System | microsoft | windows_server_2019 | < 10.0.17763.7792 | Yes |
| Operating System | microsoft | windows_server_2022 | < 10.0.20348.4106 | Yes |
| Operating System | microsoft | windows_server_2022_23h2 | < 10.0.25398.1849 | Yes |
| Operating System | microsoft | windows_server_2025 | < 10.0.26100.6508 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For microsoft's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.