.NET
CVE-2026-70162 — .NET Denial of Service Vulnerability
Executive Summary
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.
Overview
5.9
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
CVSS Vector
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
None
INTEGRITY
None
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 5.2
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
6 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Visual Studio 2022 version 17.14 | Release Notes (Security Update) |
Important | Denial of Service | Yes |
| Microsoft Visual Studio 2026 version 18.10 | Release Notes (Security Update) |
Important | Denial of Service | Yes |
| System.Security.Cryptography.Pkcs on .NET 10.0 installed on Windows | Release Notes (Security Update) |
Important | Denial of Service | Unknown |
| System.Security.Cryptography.Pkcs on .NET 11.0 installed on Windows | Release Notes (Security Update) |
Important | Denial of Service | Unknown |
| System.Security.Cryptography.Pkcs on .NET 8.0 installed on Windows | Release Notes (Security Update) |
Important | Denial of Service | Unknown |
| System.Security.Cryptography.Pkcs on .NET 9.0 installed on Windows | Release Notes (Security Update) |
Important | Denial of Service | Unknown |
Patches
1 patch
| Article | Type | Restart |
|---|---|---|
Release Notes |
Security Update | Yes |
Exploits & PoC
No public exploit or PoC has been linked for this CVE yet. When available, references are sourced from public repositories and may be unverified or non-functional — review carefully before use.
Detection Rules
No public Sigma or Nuclei detection rule has been mapped to this CVE yet. Coverage is concentrated on exploited / high-profile vulnerabilities; check SigmaHQ for updates.
Acknowledgments
References
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