CVE-2026-55015: Microsoft Remote Help Denial of Service Vulnerability
Published Aug 20, 2026
·Updated
Microsoft Remote Help Denial of Service Vulnerability
Other sources
Uncontrolled search path element in Windows Remote Help allows an authorized attacker to deny service locally.
— Microsoft
Affected Software
1 affected componentFixes available
Microsoft Windows Remote Help<5.2.1040.0
5.2.1040.0
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 5.2.1040.0
Event History
Aug 20, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·09:45 PM
Data Sourced
via MITRE·09:45 PM
DescriptionSeverity
Frequently Asked Questions
1
Who can exploit this vulnerability?
An attacker must already be authorized on the affected system and have local access. The provided data does not indicate that remote, unauthenticated attackers can exploit it.
2
What is the impact of successful exploitation?
Successful exploitation can deny service in Windows Remote Help. The supplied severity vector indicates no confidentiality or integrity impact.