Summary
Impact: Information Disclosure. Microsoft rating: Important. Not known to be exploited — Exploitation More Likely. Customer action: Required.
Details
What type of information could be disclosed by this vulnerability?
An attacker who successfully exploited this vulnerability could intercept and potentially modify traffic between client and server systems.
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
The attacker must inject themselves into the logical network path between the target and the resource requested by the victim to read or modify network communications. This is called a machine-in-the-middle (MITM) attack.
Security updates
10.0.17763.4645 — https://support.microsoft.com/help/5028168
10.0.20348.1850 — https://support.microsoft.com/help/5028171
10.0.22000.2176 — https://support.microsoft.com/help/5028182
10.0.19044.3208 — https://support.microsoft.com/help/5028166
10.0.22621.1992 — https://support.microsoft.com/help/5028185
10.0.10240.20048 — https://support.microsoft.com/help/5028186
10.0.14393.6085 — https://support.microsoft.com/help/5028169
6.0.6003.22175 — https://support.microsoft.com/help/5028222
6.0.6003.22175 — https://support.microsoft.com/help/5028226
6.1.7601.26623 — https://support.microsoft.com/help/5028240
6.1.7601.26623 — https://support.microsoft.com/help/5028224
6.2.9200.24374 — https://support.microsoft.com/help/5028232
6.2.9200.24374 — https://support.microsoft.com/help/5028233
6.3.9600.21063 — https://support.microsoft.com/help/5028228
6.3.9600.21075 — https://support.microsoft.com/help/5028223
Vulnerabilities 1
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High 7.4
Windows Netlogon Information Disclosure Vulnerability
Windows Netlogon Information Disclosure Vulnerability
Revision history
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#1
Information published.
References
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CVE-2023-21526 Windows Netlogon Information Disclosure Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21526
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Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
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Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
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Common Vulnerability Scoring System
https://www.first.org/cvss