CVE-2026-55013 Windows Remote Help Defense Spoofing Vulnerability
An authorized local attacker can exploit an uncontrolled search path to perform spoofing in Windows Remote Help.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55013?
CVE-2026-55013 is a high-severity vulnerability in Microsoft Windows Remote Help, published on 20 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Uncontrolled search path element in Windows Remote Help Defense allows an authorized attacker to perform spoofing locally.
Weakness: CWE-427
Which versions are affected by CVE-2026-55013?
It affects 1 product.
Products include Microsoft Remote Help.
How do I fix CVE-2026-55013?
No fix has been published for CVE-2026-55013 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-55013 being exploited?
There is no known exploitation of CVE-2026-55013 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Windows Remote Help
Sources
Also known as GHSA-39q8-9m9g-xhf8.