CVE-2019-0708
Published: November 3, 2021
Official Description
Microsoft Remote Desktop Services, formerly known as Terminal Service, contains an unspecified vulnerability that allows an unauthenticated attacker to connect to the target system using RDP and send specially crafted requests. Successful exploitation allows for remote code execution. The vulnerability is also known under the moniker of BlueKeep.
CISA KEV Advisory
Microsoft Remote Desktop Services Remote Code Execution Vulnerability
Microsoft Remote Desktop Services, formerly known as Terminal Service, contains an unspecified vulnerability that allows an unauthenticated attacker to connect to the target system using RDP and send specially crafted requests. Successful exploitation allows for remote code execution. The vulnerability is also known under the moniker of BlueKeep.
Apply updates per vendor instructions.
Risk Analysis
Microsoft Remote Desktop Services (BlueKeep) contains a critical vulnerability that allows an unauthenticated attacker to achieve remote code execution by sending specially crafted requests over RDP. The high EPSS score of 0.94456 indicates a very high likelihood of exploitation, making this a severe threat. This vulnerability is confirmed to be actively exploited.
This vulnerability is actively exploited in the wild and is part of CISA's KEV catalog. It is remotely exploitable by an unauthenticated attacker connecting via RDP.
Apply the security updates from Microsoft for Remote Desktop Services to patch the BlueKeep vulnerability. Restrict RDP access to only necessary and trusted users, and consider using a VPN for RDP connections.
Technical Analysis
CVE-2019-0708 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2019-0708 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-0708 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1