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Fencer Vulns
high 7.5

CVE-2025-30399 json

.NET and Visual Studio Remote Code Execution Vulnerability

published 2025-06-11 16 mo ago modified 2026-09-10 1 mo ago also BIT-dotnet-2025-30399 , BIT-dotnet-sdk-2025-30399 , BIT-powershell-2025-30399 , EUVD-2025-18115 , GHSA-266m-wp2v-x7mq

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

Untrusted search path in .NET and Visual Studio allows an unauthorized attacker to execute code over a network.

Patch / fix

  • nuget Microsoft.NetCore.App.Runtime.linux-arm 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.linux-arm64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.linux-musl-arm 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.linux-musl-arm64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.linux-musl-x64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.linux-x64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.osx-arm64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.osx-x64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.win-arm 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.win-arm64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.win-x64 8.0.17, 9.0.6
  • nuget Microsoft.NetCore.App.Runtime.win-x86 8.0.17, 9.0.6
  • bitnami dotnet 8.0.18, 9.0.7
  • bitnami dotnet-sdk 8.0.101, 9.0.100
  • bitnami powershell 7.4.11, 7.5.2
  • Microsoft .NET 8.0 8.0.17
  • Microsoft .NET 9.0 9.0.6
  • Microsoft Microsoft Visual Studio 2022 version 17.10 17.10.16
  • Microsoft Microsoft Visual Studio 2022 version 17.12 17.12.9
  • Microsoft Microsoft Visual Studio 2022 version 17.14 17.14.5
  • Microsoft Microsoft Visual Studio 2022 version 17.8 17.8.22
  • Microsoft PowerShell 7.4 7.4.11
  • Microsoft PowerShell 7.5 7.5.2
  • dotnet8 Ubuntu 22.04 LTS 8.0.117-8.0.17-0ubuntu1~22.04.1
  • dotnet8 Ubuntu 24.04 LTS 8.0.117-8.0.17-0ubuntu1~24.04.1

ubuntu advisories UBUNTU-CVE-2025-30399

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • dotnet9.0 RHEL 9 9.0.107-1.el9_6
  • dotnet-host RHEL 9 9.0.6-1.el9_6
  • dotnet-sdk-9.0 RHEL 9 9.0.107-1.el9_6
  • dotnet-hostfxr-9.0 RHEL 9 9.0.6-1.el9_6
  • dotnet-runtime-9.0 RHEL 9 9.0.6-1.el9_6
  • dotnet-sdk-aot-9.0 RHEL 9 9.0.107-1.el9_6
  • dotnet-sdk-dbg-9.0 RHEL 9 9.0.107-1.el9_6
  • dotnet-templates-9.0 RHEL 9 9.0.107-1.el9_6

red hat advisories RHSA-2025:9066RHSA-2025:8817RHSA-2025:8815RHSA-2025:8816RHSA-2025:8813RHSA-2025:8814

  • dotnet-sdk-8.0 AlmaLinux 8 8.0.117-1.el8_10
  • dotnet-hostfxr-8.0 AlmaLinux 8 8.0.17-1.el8_10
  • dotnet-runtime-8.0 AlmaLinux 8 8.0.17-1.el8_10
  • dotnet-sdk-dbg-8.0 AlmaLinux 8 8.0.117-1.el8_10
  • dotnet-templates-8.0 AlmaLinux 8 8.0.117-1.el8_10
  • aspnetcore-runtime-8.0 AlmaLinux 8 8.0.17-1.el8_10
  • dotnet-runtime-dbg-8.0 AlmaLinux 8 8.0.17-1.el8_10
  • dotnet-apphost-pack-8.0 AlmaLinux 8 8.0.17-1.el8_10

almalinux advisories ALSA-2025:8812ALSA-2025:8813ALSA-2025:8814ALSA-2025:8815ALSA-2025:8816ALSA-2025:8817

  • dotnet8.0 Rocky Linux 9 8.0.117-1.el9_6
  • dotnet9.0 Rocky Linux 9 9.0.107-1.el9_6
  • dotnet8.0 Rocky Linux 10 8.0.117-1.el10_0
  • dotnet9.0 Rocky Linux 10 9.0.107-1.el10_0
  • dotnet8.0 Rocky Linux 8 8.0.117-1.el8_10
  • dotnet9.0 Rocky Linux 8 9.0.107-1.el8_10

rocky linux advisories RLSA-2025:8813RLSA-2025:8817RLSA-2025:8814RLSA-2025:8816RLSA-2025:8812RLSA-2025:8815

  • dotnet8-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 8.0.17-r0
  • dotnet9-runtime Alpine 3.24, Alpine 3.23, Alpine 3.22 +1 more 9.0.6-r0

alpine advisories ALPINE-CVE-2025-30399

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2025-30399 updated cvss 7.5

dotnet: .NET Remote Code Vulnerability

  • Red Hat Enterprise Linux 9 dotnet6.0, dotnet7.0, dotnet-host, dotnet-sdk-6.0, dotnet-sdk-7.0, dotnet-hostfxr-6.0, +16 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder EUS (v.9.4) dotnet-sdk-8.0-source-built-artifacts 8.0.117-1.el9_4
    fixed: vendor fix RHSA-2025:9066
  • Red Hat Enterprise Linux AppStream (v. 8) dotnet 9.0.107-1.el8_10, dotnet-host 9.0.6-1.el8_10, dotnet8.0 8.0.117-1.el8_10, dotnet9.0 9.0.107-1.el8_10, dotnet-sdk-8.0 8.0.117-1.el8_10, dotnet-sdk-9.0 9.0.107-1.el8_10, +22 more
    fixed: vendor fix RHSA-2025:8812
  • Red Hat Enterprise Linux AppStream (v. 9) dotnet-host 9.0.6-1.el9_6, dotnet8.0 8.0.117-1.el9_6, dotnet9.0 9.0.107-1.el9_6, dotnet-sdk-8.0 8.0.117-1.el9_6, dotnet-sdk-9.0 9.0.107-1.el9_6, dotnet-hostfxr-9.0 9.0.6-1.el9_6, +21 more
    fixed: vendor fix RHSA-2025:8813
  • Red Hat Enterprise Linux AppStream (v. 10) dotnet-host 9.0.6-1.el10_0, dotnet8.0 8.0.117-1.el10_0, dotnet9.0 9.0.107-1.el10_0, dotnet-sdk-8.0 8.0.117-1.el10_0, dotnet-sdk-9.0 9.0.107-1.el10_0, dotnet-hostfxr-9.0 9.0.6-1.el10_0, +21 more
    fixed: vendor fix RHSA-2025:8814
  • Red Hat Enterprise Linux AppStream EUS (v.9.4) dotnet8.0 8.0.117-1.el9_4, dotnet-host 8.0.17-1.el9_4, dotnet-sdk-8.0 8.0.117-1.el9_4, dotnet-hostfxr-8.0 8.0.17-1.el9_4, dotnet-runtime-8.0 8.0.17-1.el9_4, dotnet-sdk-dbg-8.0 8.0.117-1.el9_4, +8 more
    fixed: vendor fix RHSA-2025:9066
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) dotnet-sdk-8.0-source-built-artifacts 8.0.117-1.el9_6, dotnet-sdk-9.0-source-built-artifacts 9.0.107-1.el9_6
    fixed: vendor fix RHSA-2025:8813
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) dotnet-sdk-8.0-source-built-artifacts 8.0.117-1.el10_0, dotnet-sdk-9.0-source-built-artifacts 9.0.107-1.el10_0
    fixed: vendor fix RHSA-2025:8814
show 1 more
  • Red Hat Enterprise Linux CRB (v. 8) dotnet-sdk-8.0-source-built-artifacts 8.0.117-1.el8_10, dotnet-sdk-9.0-source-built-artifacts 9.0.107-1.el8_10
    fixed: vendor fix RHSA-2025:8812

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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
16 mo ago

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
OSV 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
nuget Microsoft.NetCore.App.Runtime.linux-arm
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.linux-arm64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.linux-musl-arm
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.linux-musl-arm64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.linux-musl-x64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.linux-x64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.osx-arm64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.osx-x64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.win-arm
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.win-arm64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.win-x64
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
nuget Microsoft.NetCore.App.Runtime.win-x86
>=9.0.0, <9.0.6
>=8.0.0, <8.0.17
9.0.6
8.0.17
bitnami dotnet
>=8.0.0, <8.0.18
>=9.0.0, <9.0.7
8.0.18
9.0.7
bitnami dotnet-sdk
>=8.0.0, <8.0.101
>=9.0.0, <9.0.100
8.0.101
9.0.100
bitnami powershell
>=7.4.0, <7.4.11
>=7.5.0, <7.5.2
7.4.11
7.5.2

Affected products

  • Microsoft .NET 8.0
  • Microsoft .NET 9.0
  • Microsoft Microsoft Visual Studio 2022 version 17.10
  • Microsoft Microsoft Visual Studio 2022 version 17.12
  • Microsoft Microsoft Visual Studio 2022 version 17.14
  • Microsoft Microsoft Visual Studio 2022 version 17.8
  • Microsoft PowerShell 7.4
  • Microsoft PowerShell 7.5

Classification

Weakness

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.