Microsoft .NET Framework 3.5 AND 4.8 vulnerabilities

80 vulnerabilities

Known vulnerabilities in Microsoft .NET Framework 3.5 AND 4.8, newest first, with CVSS severity, EPSS, KEV listings, ransomware use and the affected versions.

7.5CVE-2026-97801microsoftmicrosoft .net framework 3.5+7
EPSS score
0.61%
Improper validation of specified type of input in .NET Framework allows an unauthorized attacker to perform tampering over a network.
7.5CVE-2026-97788microsoftmicrosoft .net framework 3.5+37
EPSS score
0.68%
Observable discrepancy in Active Directory Federation Services (AD FS) allows an unauthorized attacker to disclose information over a network.
7.5CVE-2026-96960chainguardaspnet-9-targeting-pack+33
EPSS score
1.03%
Asymmetric resource consumption (amplification) in .NET allows an unauthorized attacker to deny service over a network.
7.5CVE-2026-96959chainguardaspnet-9-targeting-pack+33
EPSS score
0.75%
Allocation of resources without limits or throttling in .NET allows an unauthorized attacker to deny service over a network.
7.5CVE-2026-96958chainguardaspnet-9-targeting-pack+33
EPSS score
1.03%
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
7.5CVE-2026-96233chainguarddotnet-bootstrap-8+27
EPSS score
0.77%
Out-of-bounds write in ASP.NET Core allows an unauthorized attacker to deny service over a network.
8.8CVE-2026-96224microsoftmicrosoft .net framework 3.5+16
EPSS score
0.74%
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
7.4CVE-2026-96222chainguarddotnet-8-sdk+26
EPSS score
0.58%
Improper certificate validation in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
8.8CVE-2026-85363microsoftmicrosoft .net framework 3.5+16
EPSS score
0.74%
Integer overflow or wraparound in .NET Framework allows an unauthorized attacker to elevate privileges over a network.
7.5CVE-2026-84008chainguardactions-runner+35
EPSS score
0.77%
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
8.8CVE-2026-83520microsoftmicrosoft .net framework 3.5+16
EPSS score
1.27%
Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code over a network.
8.8CVE-2026-70174microsoftmicrosoft .net framework 3.5+16
EPSS score
0.80%
Improperly implemented security check for standard in .NET allows an unauthorized attacker to execute code over a network.
8.8CVE-2026-70035microsoftmicrosoft .net framework 3.5+16
EPSS score
1.27%
Deserialization of untrusted data in .NET Framework allows an unauthorized attacker to execute code over a network.
8.8CVE-2026-70007microsoftmicrosoft .net framework 3.5+16
EPSS score
0.64%
Out-of-bounds write in .NET Framework allows an unauthorized attacker to execute code over a network.
7.5CVE-2026-69651chainguarddotnet-bootstrap-8+28
EPSS score
1.10%
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
7.5CVE-2026-58280chainguarddotnet-bootstrap-8+29
EPSS score
1.10%
Uncontrolled recursion in .NET allows an unauthorized attacker to deny service over a network.
8.8CVE-2026-108398microsoftmicrosoft .net framework 3.5 and 4.6.2/4.7/4.7.1/4.7.2+6
EPSS score
0.47%
Untrusted search path in .NET Framework allows an authorized attacker to bypass a security feature locally.
8.8CVE-2026-102869microsoftmicrosoft .net framework 3.5 and 4.6.2/4.7/4.7.1/4.7.2+8
EPSS score
0.74%
Access of resource using incompatible type ('type confusion') in .NET and Visual Studio allows an unauthorized attacker to elevate privileges over a network.
8.8CVE-2025-21176chainguarddotnet-bootstrap-9+36
EPSS score
2.35%
.NET, .NET Framework, and Visual Studio Remote Code Execution Vulnerability
5.7CVE-2025-55248chainguarddotnet-bootstrap-8+37
EPSS score
0.72%
Inadequate encryption strength in .NET, .NET Framework, Visual Studio allows an authorized attacker to disclose information over a network.