Vulnerability · Published Jul 17, 2026 · Assigned by microsoft
CVE-2026-56171Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
High 7.1
In plain English
A high-severity security flaw in Remote Desktop Web Client from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.7%top 48.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Remote Desktop Web Client | 2.0.0.0 – before 2.1.65.2 |
| Microsoft | Windows Admin Center | 1809.0 – before 2.7.4 |
Weakness: CWE-359 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N/E:U/RL:O/RC:C
References
- Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability vendor-advisory, patch