CVE-2017-11770
Published:November 15, 2017
Updated:May 17, 2026
.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 Packages
system.security.cryptography.x509certificates (NUGET):
Affected version(s) >=4.1.0-rc2-24027 <4.1.2Fix Suggestion:
Update to version 4.1.2microsoft.netcore.app (NUGET):
Affected version(s) >=1.0.0 <2.0.3Fix Suggestion:
Update to version 2.0.3Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Certificate Validation
EPSS
Base Score:
13.69