What’s Vulnerable › Vulnerabilities

CVE-2017-11770

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-11-15 · updated 2026-06-17
• Weakness: CWE-295

Description

.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly parsing certificate data. A denial of service vulnerability exists when .NET Core improperly handles parsing certificate data, aka ".NET CORE Denial Of Service Vulnerability".

Affected products

• Microsoft Aspnetcore: 1.0, 1.1, 2.0
• Microsoft Corporation .NET Core: .NET Core 1.0, .NET Core 1.1, and .NET Core 2.0

References

• http://www.securityfocus.com/bid/101710
• http://www.securitytracker.com/id/1039787
• https://access.redhat.com/errata/RHSA-2017:3248
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770
• http://www.securityfocus.com/bid/101710
• http://www.securitytracker.com/id/1039787
• https://access.redhat.com/errata/RHSA-2017:3248
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770

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