Microsoft Windows up to Server 2019 CDP User memory corruption

Summaryinfo

A vulnerability categorized as critical has been discovered in Microsoft Windows. This affects an unknown function of the component CDP User. The manipulation results in memory corruption. This vulnerability is reported as CVE-2020-1550. The attack can be launched remotely. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft Windows (Operating System). Affected is an unknown functionality of the component CDP User. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An elevation of privilege vulnerability exists when the Windows CDP User Components improperly handle memory. To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges. The security update addresses the vulnerability by correcting how the Windows CDP User Components handle memory.

The weakness was disclosed 08/11/2020 as confirmed security update guide (Website). The advisory is shared for download at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with the vendor. This vulnerability is traded as CVE-2020-1550. It is possible to launch the attack remotely. The successful exploitation needs a authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 02/24/2026). The advisory points out:

An elevation of privilege vulnerability exists when the Windows CDP User Components improperly handle memory.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-159556, VDB-159555, VDB-159554 and VDB-159553 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Operating System

Vendor

• Microsoft

Name

• Windows

Version

• 10 1607
• 10 1709
• 10 1803
• 10 1809
• 10 1903
• 10 1909
• 10 2004
• Server 1903
• Server 1909
• Server 2004
• Server 2016
• Server 2019

License

• commercial

Website

• Vendor: https://www.microsoft.com/
• Product: https://www.microsoft.com/en-us/windows

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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