Summary
Impact: Spoofing. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.
Details
Security updates
5.2.1040.0 — https://learn.microsoft.com/en-us/intune/remote-help/?tabs=windows
Vulnerabilities 1
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High 7.1
Windows Remote Help Defense Spoofing Vulnerability
Uncontrolled search path element in Windows Remote Help Defense allows an authorized attacker to perform spoofing locally.
Revision history
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#1
Information published.
References
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CVE-2026-55013 Windows Remote Help Defense Spoofing Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-55013
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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