Oct 2026: .NET Denial of Service Vulnerability
CVE-2026-69651 Published on October 13, 2026
.NET Denial of Service Vulnerability
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
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-2026-69651
Want to know whenever a new CVE is published for Microsoft products? stack.watch will email you.
Affected Versions
Microsoft .NET 10.0:- Version 10.0.0 and below 10.0.13 is affected.
- Version 11.0.0 and below 11.0.0-rc.2 is affected.
- Version 8.0.0 and below 8.0.32 is affected.
- Version 9.0.0 and below 9.0.21 is affected.
- Version 3.5.0 and below 2.0.50727.9188 AND 3.0.30729.9171 is affected.
- Version 3.0.0.0 and below 2.0.50727.8987 AND 3.0.30729.8982 AND 4.7.4150.0 is affected.
- Version 4.7.0 and below 2.0.50727.9073 AND 3.0.30729.9070 AND 4.7.4150.0 is affected.
- Version 4.8.0 and below 2.0.50727.9073 AND 3.0.30729.9070 AND 4.8.4811.0 is affected.
- Version 4.8.1 and below 2.0.50727.9188 AND 3.0.30729.9171 AND 4.8.9363.0 is affected.
- Version 4.7.0 and below 4.7.4150.0 is affected.
- Version 4.8.0 and below 4.8.4811.0 is affected.
- Version 4.8.0.0 and below 4.8.9363.0 is affected.
- Version 17.14.0 and below 17.14.42 is affected.
- Version 18.10.0 and below 18.10.4 is affected.