CVE-2020-1031 Windows DHCP Server Information Disclosure Vulnerability

What is CVE-2020-1031?

CVE-2020-1031 is a high-severity vulnerability in Microsoft Windows 10, published on 11 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

<p>An information disclosure vulnerability exists in the way that the Windows Server DHCP service improperly discloses the contents of its memory.</p> <p>To exploit the vulnerability, an unauthenticated attacker could send a specially crafted packet to an affected DHCP server. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.</p> <p>The security update addresses the vulnerability by correcting how DHCP servers initializes memory.</p>

Which versions are affected by CVE-2020-1031?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2020-1031?

No fix has been published for CVE-2020-1031 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-1031 being exploited?

There is no known exploitation of CVE-2020-1031 in the wild and no public exploit code.

Other vulnerabilities in Microsoft Windows 10

• CVE-2015-2426 Microsoft Windows Adobe Type Manager Library Remote Code Execution Exploited High 8.8
• CVE-2015-1769 Microsoft Windows Mount Manager Privilege Escalation Exploited Medium 6.6
• CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability Critical 10.0
• CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability Critical 9.9
• CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability Critical 9.9

All Microsoft Windows 10 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-w59p-w4fh-943v.