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CVE-2019-9510— Microsoft Windows RDP can bypass the Windows lock screen

Quick assessment

Affected
Microsoft Windows 10 or newer system using RDP
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft Windows和Microsoft Windows Server都是美国微软（Microsoft）公司的产品。Microsoft Windows是一套个人设备使用的操作系统。Microsoft Windows Server是一套服务器操作系统。 Microsoft Windows Server 2019和Windows 10版本1803中存在安全漏洞。攻击者可利用该漏洞绕过安全限制，执行未授权的操作。

CVSS 5.3 · Medium EPSS 1.32% · P70
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I. Basic Information for CVE-2019-9510

Vulnerability Information
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Vulnerability Title
Microsoft Windows RDP can bypass the Windows lock screen
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Microsoft Windows 10 1803 and Windows Server 2019 and later systems can allow authenticated RDP-connected clients to gain access to user sessions without needing to interact with the Windows lock screen. Should a network anomaly trigger a temporary RDP disconnect, Automatic Reconnection of the RDP session will be restored to an unlocked state, regardless of how the remote system was left. By interrupting network connectivity of a system, an attacker with access to a system being used as a Windows RDP client can gain access to a connected remote system, regardless of whether or not the remote system was locked. This issue affects Microsoft Windows 10, version 1803 and later, and Microsoft Windows Server 2019, version 2019 and later.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft Windows Server和Microsoft Windows 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft Windows和Microsoft Windows Server都是美国微软（Microsoft）公司的产品。Microsoft Windows是一套个人设备使用的操作系统。Microsoft Windows Server是一套服务器操作系统。 Microsoft Windows Server 2019和Windows 10版本1803中存在安全漏洞。攻击者可利用该漏洞绕过安全限制，执行未授权的操作。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Windows 10 or newer system using RDP 1803 ~ 10 * -
Microsoft Windows Server 2019 ~ 2019* -

II. Public POCs for CVE-2019-9510

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III. Intelligence Information for CVE-2019-9510

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Vendor Advisories for CVE-2019-9510 (2)

Other References for CVE-2019-9510 (1)

IV. Related Vulnerabilities

Same vendor: Microsoft
Same weakness: CWE-288

V. Comments for CVE-2019-9510

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