CVE-2026-55013Important
Windows Remote Help Defense Spoofing Vulnerability
Assessment
Uncontrolled search path element in Windows Remote Help Defense allows an authorized attacker to perform spoofing locally.
- Severity
- Important
- CVSS base score
- 7.1CVSS:3.1/
AV:L/ AC:L/ PR:L/ UI:N/ S:U/ C:H/ I:H/ A:N/ E:U/ RL:O/ RC:C - Impact
- Spoofing
- EPSS, next 30 days
- 0.5%Higher than 37.6% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
- Exploitability
- Exploitation Less Likely
- Publicly disclosed
- No
- Customer action
- Required: apply the update
- Component
- Windows Remote Help Defense
- Weakness
- CWE-427: Uncontrolled Search Path Element
- Issued by
- Microsoft
- Published
- 20 Aug 2026 · August 2026
- Last revised
- 20 Aug 2026
Updates that fix it
0 KBsNo KB listed
MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.
Affected products
Windows1 affected product
- Windows Remote Help