CVE-2023-21722 .NET Framework Denial of Service Vulnerability

What is CVE-2023-21722?

CVE-2023-21722 is a medium-severity denial of service vulnerability in Microsoft .Net Framework, published on 14 Feb 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

.NET Framework Denial of Service Vulnerability

Weakness: CWE-59

Which versions are affected by CVE-2023-21722?

It affects 1 product.

Products include Microsoft .Net Framework.

How do I fix CVE-2023-21722?

No fix has been published for CVE-2023-21722 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-21722 being exploited?

There is no known exploitation of CVE-2023-21722 in the wild and no public exploit code.

Other vulnerabilities in Microsoft .Net Framework

• CVE-2020-0646 Microsoft .NET Framework Remote Code Execution Exploited Critical 9.8
• CVE-2017-8759 Microsoft .NET Framework Remote Code Execution Exploited High 7.8
• CVE-2015-1671 Microsoft Windows Remote Code Execution Exploited High 7.8
• CVE-2024-29059 Microsoft .NET Framework Information Disclosure Exploited High 7.5
• CVE-2014-4073 Privilege escalation in n/a Critical 10.0

All Microsoft .Net Framework vulnerabilities

Sources

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

Also known as GHSA-xp67-pj6p-rpvg.