CVE-2026-70162 .NET Denial of Service Vulnerability
Remote attackers can cause denial of service in .NET web applications by sending specially crafted requests to the Common Object Runtime Library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-70162?
CVE-2026-70162 is a medium-severity denial of service vulnerability in Microsoft Visual Studio 2022 version 17.14, published on 13 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET web application. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET application. The update addresses the vulnerability by correcting how the .NET web application handles web requests.
Weakness: CWE-405
Which versions are affected by CVE-2026-70162?
8 open source packages ship an affected version, including System.Security.Cryptography.Pkcs.
| Package | Affected | Fixed in |
|---|---|---|
System.Security.Cryptography.Pkcs NuGet | From 10.0.0 | 10.0.13 |
System.Security.Cryptography.Pkcs NuGet | From 10.0.0 | 10.0.13 |
System.Security.Cryptography.Pkcs NuGet | From 11.0.0-preview.1 | 11.0.0-rc.2 |
System.Security.Cryptography.Pkcs NuGet | From 11.0.0-preview.1 | 11.0.0-rc.2 |
System.Security.Cryptography.Pkcs NuGet | From 8.0.0 | 8.0.2 |
System.Security.Cryptography.Pkcs NuGet | From 8.0.0 | 8.0.2 |
2 more packages
System.Security.Cryptography.Pkcs NuGet | From 9.0.0 | 9.0.21 |
System.Security.Cryptography.Pkcs NuGet | From 9.0.0 | 9.0.21 |
How do I fix CVE-2026-70162?
Upgrade System.Security.Cryptography.Pkcs to a fixed version for your release line: 10.0.13, 11.0.0-rc.2, 8.0.2 or 9.0.21.
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-2026-70162 being exploited?
There is no known exploitation of CVE-2026-70162 in the wild and no public exploit code.
Sources
Also known as GHSA-2fmv-rv2c-59x7, MINI-6jv2-4hcw-3mr3, MINI-7432-vwq8-3cc3, MINI-h498-c4mj-j3r8, MINI-mmwq-wqfv-ggg3, MINI-pfvx-8697-mfwh and 3 more.