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TI-2026-39720 Aliases CVE-2026-55013GHSA-39q8-9m9g-xhf8

Windows Remote Help Defense Spoofing Vulnerability

Priority LOW 34CWE-427Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Uncontrolled search path element in Windows Remote Help Defense allows an authorized attacker to perform spoofing locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00463 40th percentileScored 2026-11-07
Fix Fixed Windows Remote Help (Microsoft): 5.2.1040.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftWindows Remote Help5.0.0.0 to before 5.2.1040.05.2.1040.0Patch availableCNA
  • Windows Remote Help VendorMicrosoft Affected 5.0.0.0 to before 5.2.1040.0 Fixed in 5.2.1040.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:remote_help:*:*:*:*:*:*:*:*before 5.2.1040.0VulnerableMicrosoft
  • cpe:2.3:a:microsoft:remote_help:*:*:*:*:*:*:*:* Versions before 5.2.1040.0 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Windows Remote Help (Microsoft) Fixed in 5.2.1040.0

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Spoofing
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely
ProductStatusPlan or fix
Windows Remote HelpFixed 5.2.1040.0 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-55013
  2. 2026-10-03 Alias added: GHSA-39q8-9m9g-xhf8

References

Patch 1

  • TI-2026-39721 Windows Remote Help Defense Elevation of Privilege Vulnerability CVSS 3.1HIGH 7.8
  • TI-2026-39722 Microsoft Remote Help Denial of Service Vulnerability CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences