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Fencer Vulns
high 7.5

CVE-2019-1301 json

High severity vulnerability that affects System.Management.Automation

published 2019-09-11 7 y ago modified 2026-06-17 4 mo ago also GHSA-62gw-3rmj-wmp2 , EUVD-2019-0655

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.4%
EPSS 5.4% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

A denial of service vulnerability exists when .NET Core improperly handles web requests, aka '.NET Core Denial of Service Vulnerability'.

Patch / fix

  • nuget System.Management.Automation 6.1.6, 6.2.3
  • dotnet RHEL 8 2.1.509-1.el8_0
  • dotnet-host RHEL 8 2.1.13-1.el8_0
  • dotnet-sdk-2.1 RHEL 8 2.1.509-1.el8_0
  • dotnet-runtime-2.1 RHEL 8 2.1.13-1.el8_0
  • dotnet-sdk-2.1.5xx RHEL 8 2.1.509-1.el8_0
  • dotnet-host-fxr-2.1 RHEL 8 2.1.13-1.el8_0
  • rh-dotnet21 RHEL 2.1 DOTNET 2.1-12.el7
  • rh-dotnet22 RHEL 2.2 DOTNET 2.2-9.el7

red hat advisories RHSA-2019:2731RHSA-2019:2732

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-1301 updated cvss 5.9

dotnet: System.Net.Sockets.dll Socket.ConnectAsync Denial of Service

  • Red Hat .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7) rh-dotnet22 2.2-9.el7, rh-dotnet21 2.1-12.el7, rh-dotnet22-runtime 2.2-9.el7, rh-dotnet21-runtime 2.1-12.el7, rh-dotnet21-dotnet 2.1.509-1.el7, rh-dotnet22-dotnet 2.2.109-1.el7, +9 more Red Hat .NET Core on Red Hat Enterprise Linux Server (v. 7) rh-dotnet22 2.2-9.el7, rh-dotnet21 2.1-12.el7, rh-dotnet22-runtime 2.2-9.el7, rh-dotnet21-runtime 2.1-12.el7, rh-dotnet21-dotnet 2.1.509-1.el7, rh-dotnet22-dotnet 2.2.109-1.el7, +9 more Red Hat .NET Core on Red Hat Enterprise Linux Workstation (v. 7) rh-dotnet22 2.2-9.el7, rh-dotnet21 2.1-12.el7, rh-dotnet22-runtime 2.2-9.el7, rh-dotnet21-runtime 2.1-12.el7, rh-dotnet21-dotnet 2.1.509-1.el7, rh-dotnet22-dotnet 2.2.109-1.el7, +9 more
    fixed: vendor fix RHSA-2019:2732
  • Red Hat Enterprise Linux AppStream (v. 8) dotnet 2.1.509-1.el8_0, dotnet-host 2.1.13-1.el8_0, dotnet-sdk-2.1 2.1.509-1.el8_0, dotnet-runtime-2.1 2.1.13-1.el8_0, dotnet-host-fxr-2.1 2.1.13-1.el8_0, dotnet-sdk-2.1.5xx 2.1.509-1.el8_0
    fixed: vendor fix RHSA-2019:2731

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.37% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
nuget System.Management.Automation
>=6.2.0, <6.2.3
>=6.0.0, <6.1.6
6.2.3
6.1.6

Affected products

  • Microsoft .NET Core

References

Sources

Fencer Vulns 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.