CVE-2023-21722
MediumCVSS 5.0Exploitation Probability (EPSS)
Elevated risk57th percentile - higher than 57% of all known CVEs
Summary
Denial of service vulnerability in .NET Framework.
Risk Assessment
An attacker could exploit the vulnerability to cause unavailability of applications based on .NET Framework.
Recommendation
Update .NET Framework to the latest version that includes the security fix.
Other vulnerabilities in .NET Framework
See all- CVE-2026-97801High
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
- CVE-2026-85363High
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to elevate privileges over a network.
- CVE-2017-8585High
Microsoft .NET Framework versions 4.6, 4.6.1, 4.6.2, and 4.7 allow an attacker to send specially crafted requests to a .NET web application, resulting in denial of service.
- CVE-2017-0160High
Microsoft .NET Framework versions 2.0, 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7 allows an attacker with access to the local system to execute malicious code, known as '.NET Remote Code Execution Vulnerability.'
- CVE-2016-7270High
The Data Provider for SQL Server in Microsoft .NET Framework 4.6.2 mishandles a developer-supplied key, allowing remote attackers to bypass the Always Encrypted protection mechanism and obtain sensitive cleartext information.
- CVE-2016-0033High
Microsoft .NET Framework versions 2.0 SP2, 3.5, 3.5.1, 4.5.2, 4.6, and 4.6.1 does not prevent recursive compilation of XSLT transforms, allowing remote attackers to cause a denial of service via crafted XSLT data.
- CVE-2014-4121High
Microsoft .NET Framework versions 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 improperly parse internationalized resource identifiers, allowing remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted request to a .NET web application.
- CVE-2014-4073High
A vulnerability in Microsoft .NET Framework allows remote attackers to gain privileges through unverified data during interaction with the ClickOnce installer. It affects versions 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2.
- CVE-2014-1806High
The .NET Remoting implementation in Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly restrict memory access, allowing remote attackers to execute arbitrary code via malformed objects.
- CVE-2024-29059HighActively exploited
.NET Framework Information Disclosure Vulnerability. Technical details are not provided in the description.
Original NVD description (English source)
.NET Framework Denial of Service Vulnerability
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

