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High 7.1Published Jul 17, 2026
CVE-2026-56171Windows Remote Desktop Protocol (RDP) Information Disclosure Vulnerability
Updated under an hour ago ()
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It affects Microsoft Remote Desktop Web Client and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Exposure of private personal information to an unauthorized actor in Windows RDP allows an unauthorized attacker to disclose information over a network.
- CVSS
- 7.1 HIGH (v3.1, CNA)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
- Weakness (CWE)
- CWE-359
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Remote Desktop Web Client microsoft:remote_desktop_web_client (from the name) | from 2.0.0.0 before 2.1.65.2 | CNA record |
Microsoft Windows Admin Center microsoft:windows_admin_center (from the name) | 1809.0 builds before 2.7.4 | CNA record |
microsoft remote_desktop_web_client microsoft:remote_desktop_web_client | before 2.1.65.2 | NVD |
microsoft windows_admin_center microsoft:windows_admin_center | before 2606 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56171vendor-advisory, patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.