VDB
CVE-2026-26171
CVE-2026-26171
PUBLISHED
CVSS 7.5 HIGH
Microsoft Security Advisory CVE-2026-26171 – .NET Denial of Service Vulnerability
EPSS 3.08% · 87.0th percentile
Risk Scores
CVSS v3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
EPSS Score
3.08%
87.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| microsoft | .net | 8.0.0, 10.0.0, 9.0.0 |
| Microsoft | .NET 10.0 | 10.0.0 |
| Microsoft | .NET 9.0 | 9.0.0 |
| NuGet | System.Security.Cryptography.Xml | 8.0.0, 9.0.0, 10.0.0 |
| Microsoft | .NET 8.0 | 8.0.0 |
Timeline
- Apr 14, 2026 CVE Published
- Apr 14, 2026 PoC Published
- Apr 14, 2026 PoC Published
- Apr 15, 2026 Security Advisory
- Apr 15, 2026 Security Advisory
- Apr 16, 2026 Distribution Patch
- Apr 16, 2026 Security Advisory
- Apr 16, 2026 Distribution Patch
- Apr 16, 2026 Security Advisory
- Apr 16, 2026 Distribution Patch
- Apr 16, 2026 Security Advisory
- Apr 16, 2026 Distribution Patch