Are Windows Remote Desktop Protocol (RDP) Users at Risk? Microsoft Fixes Multiple Dangerous Vulnerabilities

Microsoft has released security updates to address several information disclosure vulnerabilities identified in the Windows Remote Desktop Protocol (RDP) service. If successfully exploited, these flaws could allow attackers to obtain sensitive information stored in system memory during remote desktop sessions.

At present, there is no evidence of active exploitation of these vulnerabilities, nor have any public proof-of-concept (PoC) exploits been released. Nevertheless, because RDP is widely used across enterprise environments, security experts strongly recommend applying the available security updates without delay.

Microsoft has patched the following vulnerabilities:

Each of these vulnerabilities has been assigned a CVSS score of 6.5 and is rated “Important.”

The vulnerabilities stem from flaws in the way the Windows RDP component handles memory, potentially allowing sensitive information from system memory to be disclosed to remote attackers.

Most of the identified issues are related to buffer over-read, out-of-bounds read, and uninitialized memory vulnerabilities.

Although these vulnerabilities do not allow remote code execution (RCE), they may leak valuable information from system memory that attackers could leverage in subsequent attacks.

If successfully exploited, attackers may potentially obtain: