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CVE-2019-1075

22
FAUCET Score

CVE-2019-1075 is a medium-severity spoofing vulnerability in ASP.NET Core that could enable an open redirect attack. This vulnerability, with a CVSS score of 6.1, can be exploited remotely with low attack complexity, requiring user interaction to achieve partial confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code, or inclusion in CISA's KEV catalog, though it has received some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.1CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:*
2.2CPE matchmatch criteria
cpe:2.3:a:microsoft:asp.net_core:2.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.64%
Probability of exploitation in next 30 days
EPSS Percentile
84.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0264 is in the 93rd percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (10)

microsoftpatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: ASP.NET Core 2.1
View patch
microsoftpatch availablevia msrc
Product: ASP.NET Core 2.2
View patch
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AllFixed in: 2.1.12
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Server.IISFixed in: 2.2.6
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AppFixed in: 2.2.6
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Server.HttpSysFixed in: 2.1.12
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.Server.HttpSysFixed in: 2.2.6
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AppFixed in: 2.1.12
nugetpatch availablevia ghsa
Product: Microsoft.AspNetCore.AllFixed in: 2.2.6

Vendor Advisories (2)

nugetGHSA-prrf-397v-83xhmedium

Open redirect in ASP.NET Core

May 24, 2022
microsoft2019-Jul/CVE-2019-1075Moderate

ASP.NET Core Spoofing Vulnerability

Jul 9, 2019

References

portal.msrc.microsoft.com / en-US/security-guidance/advisory/CVE-2019-1075
PatchVendor Advisory