May 14, 2019—KB4499405 Cumulative Update for .NET Framework 3.5, 4.7.2, and 4.8 for Windows 10, version 1809 and Windows Server 2019

2019-05-1407:00:00

Microsoft

support.microsoft.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.3 High

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.002 Low

EPSS

Percentile

59.1%

JSON

May 14, 2019—KB4499405 Cumulative Update for .NET Framework 3.5, 4.7.2, and 4.8 for Windows 10, version 1809 and Windows Server 2019

Release Date:
05/14/2019
Version:
.NET Framework 3.5 and 4.7.2
.NET Framework 3.5 and 4.8

Summary

Denial of service vulnerabilities exist when .NET Framework improperly handles objects in heap memory, or when .NET Framework and .NET Core improperly process RegEx strings.

To learn more about the vulnerabilities, go to the following Common Vulnerabilities and Exposures (CVE).

Additional information about this update

The following articles contain additional information about this update as it relates to individual product versions.

4495590 Description of the Cumulative Update for .NET Framework 3.5 and 4.7.2 for Windows 10, version 1809 and Windows Server 2019 (KB4495590)
4495618 Description of the Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10, version 1809 and Windows Server 2019 (KB4495618)