CVE-2026-70162
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Windows Affected 1 release
| Version | Package | Status | Fixed in |
|---|---|---|---|
| — | — | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| NuGet | System.Security.Cryptography.Pkcs | >= 9.0.0, <= 9.0.20 | 9.0.21 |
| NuGet | System.Security.Cryptography.Pkcs | >= 8.0.0, <= 8.0.1 | 8.0.2 |
| NuGet | System.Security.Cryptography.Pkcs | >= 11.0.0-preview.1, <= 11.0.0-rc.1 | 11.0.0-rc.2 |
| NuGet | System.Security.Cryptography.Pkcs | >= 10.0.0, <= 10.0.12 | 10.0.13 |
| NuGet | System.Security.Cryptography.Pkcs | >=10.0.0,<10.0.13 | 10.0.13 |
| NuGet | System.Security.Cryptography.Pkcs | >=11.0.0-preview.1,<11.0.0-rc.2 | 11.0.0-rc.2 |
| NuGet | System.Security.Cryptography.Pkcs | >=8.0.0,<8.0.2 | 8.0.2 |
| NuGet | System.Security.Cryptography.Pkcs | >=9.0.0,<9.0.21 | 9.0.21 |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70162
- https://github.com/dotnet/runtime/security/advisories/GHSA-2fmv-rv2c-59x7
- https://github.com/dotnet/announcements/issues/454
- https://github.com/dotnet/runtime/issues/135699
- https://github.com/advisories/GHSA-2fmv-rv2c-59x7
- https://github.com/dotnet/runtime
CWEs
CWE-405
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.