7.5

CVE-2018-8171: microsoft asp.net Improper Authentication

CVSS: 7.5v3.0HighModified
AliasesGHSA-vhvh-528q-ff3p
Published 11-07-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-8171 is a high (CVSS 7.5) Improper Authentication vulnerability in microsoft asp.net. EPSS estimates a 10.77% chance of exploitation in the next 30 days, higher than 95.8% of scored vulnerabilities.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
10.77%
0%100%
Medium · +0.29 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-07-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

10.77%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

+0.29 pp

From 10.48% on 19-09-2026

19-09-202619-10-2026
EPSS score
10.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Microsoft5 products
NuGet1 product
  • Microsoft.AspNetCore.Identity≥ 1.0.0, < 1.0.6 | ≥ 1.1.0, < 1.1.6 | ≥ 2.0.0, < 2.0.4 | ≥ 2.1.0, < 2.1.2

2 vendors · 6 products

References

5 links