CVE-2019-0545

high-risk
Published 2019-01-08

An information disclosure vulnerability exists in .NET Framework and .NET Core which allows bypassing Cross-origin Resource Sharing (CORS) configurations, aka ".NET Framework Information Disclosure Vulnerability." This affects Microsoft .NET Framework 2.0, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.7/4.7.1/4.7.2, .NET Core 2.1, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 2.2, Microsoft .NET Framework 4.7.2.

Do I need to act?

~
9.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (13)

Affected Vendors

Microsoft

References (6)

Third Party Advisory http://www.securityfocus.com/bid/106405
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0040
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0545
Third Party Advisory http://www.securityfocus.com/bid/106405
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:0040
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0545
54
/ 100
high-risk
Severity 26/34 · High
Exploitability 11/34 · Low
Exposure 17/34 · Moderate