CVE-2018-8171

Name: CVE-2018-8171
Creator: NVD / NIST
Published: 2018-07-11T00:29:00.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 9.83%

Last modified Jun 17, 2026

CVE-2018-8171 is a vulnerability of currently unknown severity. A Security Feature Bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated, aka "ASP.NET Security Feature Bypass Vulnerability." This affects ASP.NET, ASP.NET Core 1.1, ASP.NET Core 1.0, ASP.NET Core 2.0, ASP.NET MVC 5.2.. EPSS estimates a 9.83% chance of exploitation in the next 30 days.

Description

A Security Feature Bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated, aka "ASP.NET Security Feature Bypass Vulnerability." This affects ASP.NET, ASP.NET Core 1.1, ASP.NET Core 1.0, ASP.NET Core 2.0, ASP.NET MVC 5.2.

Metrics

EPSS Probability

9.83%

94.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Microsoft	Asp.Net Core	1.0
Microsoft	Asp.Net Core	1.1
Microsoft	Asp.Net Core	2.0
Microsoft	Asp.Net Model View Controller	5.2
Microsoft	Asp.Net Webpages	3.2.3

References

http://www.securityfocus.com/bid/104659Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041267Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8171Patch, Vendor Advisory
http://www.securityfocus.com/bid/104659Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041267Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8171Patch, Vendor Advisory

Timeline

Published: Jul 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-8171?

How severe is CVE-2018-8171?

Severity scoring for CVE-2018-8171 is pending analysis. The EPSS model estimates a 9.83% probability of exploitation in the next 30 days.

How do I fix CVE-2018-8171?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-8171?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST