Summary
Impact: Remote Code Execution. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment.
According to the CVSS metric, privileges required is low (PR:L). What does that mean for this vulnerability?
An attacker must already have access and the ability to run code on the target system. This technique does not allow for remote code execution in cases where the attacker does not already have that ability on the target system.
Security updates
10.0.20348.1487 — https://support.microsoft.com/help/5022291
10.0.19042.2486 — https://support.microsoft.com/help/5022282
10.0.22000.1455 — https://support.microsoft.com/help/5022287
10.0.22621.1105 — https://support.microsoft.com/help/5022303
Vulnerabilities 1
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High 7.5
Windows Authentication Remote Code Execution Vulnerability
Windows Authentication Remote Code Execution Vulnerability
Revision history
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#1
Information published.
References
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CVE-2023-21539 Windows Authentication Remote Code Execution Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21539
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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