CVE-2017-0247

A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests

published May 12, 2017

CVSS
—
EPSS
17%
Percentile
97.0
In the wild
Unconfirmed
What it is

A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.16911 · 97.0th percentile
Published
2017-05-12T14:00Z
EPSS history
Timeline
  • 12 MAY 14:00Z
    A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests
    cvelistv5