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Fencer Intel
medium 6.1

CVE-2019-1075 json

Open redirect in ASP.NET Core

published 7y ago modified 4mo ago also GHSA-prrf-397v-83xh , EUVD-2022-4821

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

A spoofing vulnerability exists in ASP.NET Core that could lead to an open redirect, aka 'ASP.NET Core Spoofing Vulnerability'.

Patch / fix

  • nuget Microsoft.AspNetCore.App 2.1.12, 2.2.6
  • nuget Microsoft.AspNetCore.All 2.1.12, 2.2.6
  • nuget Microsoft.AspNetCore.Server.IIS 2.2.6
  • nuget Microsoft.AspNetCore.Server.HttpSys 2.1.12, 2.2.6

Is CVE-2019-1075 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

2.64% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N
GitHub 3.0 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
nuget Microsoft.AspNetCore.App
>=2.2.0, <2.2.6
>=2.1.0, <2.1.12
2.2.6
2.1.12
nuget Microsoft.AspNetCore.All
>=2.2.0, <2.2.6
>=2.1.0, <2.1.12
2.2.6
2.1.12
nuget Microsoft.AspNetCore.Server.IIS
>=2.2.0, <2.2.6
2.2.6
nuget Microsoft.AspNetCore.Server.HttpSys
>=2.2.0, <2.2.6
>=2.1.0, <2.1.12
2.2.6
2.1.12

Affected products

  • Microsoft ASP.NET Core

Classification

Weakness
  • CWE-601 URL Redirection to Untrusted Site

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.