.NET Core
CVE-2018-0875 — .NET Core Denial of Service Vulnerability
Executive Summary
A denial of service vulnerability exists in the way that .NET Core handles specially crafted requests, causing a hash collision. To exploit the vulnerability, an attacker could send a small number of specially crafted requests to an .NET Core web application, causing performance to degrade significantly enough to cause a denial of service condition. The security update addresses the vulnerability by correcting how .NET Core handles specially crafted requests to prevent a hash collision.
Overview
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
EPSS Score
0.0925
probability of exploitation in the next 30 days
0.94902 percentile - updated 2026-08-14
View on FIRST.org
Affected Products
4 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| .NET Core 1.0 | Commit (Security Update) |
Important | Denial of Service | Yes |
| .NET Core 1.1 | Commit (Security Update) |
Important | Denial of Service | Yes |
| .NET Core 2.0 | Commit (Security Update) |
Important | Denial of Service | Yes |
| PowerShell Core 6.0.0 | Release Notes (Security Update) |
Important | Denial of Service | Maybe |
Patches
2 patches
| Article | Type | Restart |
|---|---|---|
Commit |
Security Update | Yes |
Release Notes |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
References
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