Nov 2026: .NET Denial of Service Vulnerability
CVE-2026-120796 Published on November 10, 2026

.NET Denial of Service Vulnerability
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.

Vendor Advisory NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
YES
Technical Impact:
PARTIAL

Weakness Type

Inefficient Algorithmic Complexity

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.


Products Associated with CVE-2026-120796

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Microsoft Net 11 0 Installed On Windows
Microsoft Net 11 0 Installed On Linux
Microsoft Net 11 0 Installed On Mac Os
Microsoft System Text Json

Affected Versions

Microsoft .NET 11.0 installed on Linux: Microsoft .NET 11.0 installed on Mac OS: Microsoft .NET 11.0 installed on Windows: Microsoft System.Text.Json:

Exploit Probability

EPSS
1.17%
Percentile
67.78%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.