CVE-2026-96231: Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevat

Q: How do I fix CVE-2026-96231?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Q: Is CVE-2026-96231 being exploited?

CVE-2026-96231 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-96231 affect?

CVE-2026-96231 affects affected software. Severity is high (CVSS 7.8). Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

Q: How urgent is CVE-2026-96231?

Priority 39/100. High severity; On your watchlist

Routine

HIGH 7.8WATCHLIST

CVE-2026-96231 is a high-severity flaw (CVSS 7.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-59
Published	2026-10-13
Last modified	2026-10-22

Publisher (CNA): Microsoft Corporation

Last updated 2026-10-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-10-13Published CVE record published
2026-10-22 22:19 UTCUpdated Record last modified

Exact fixes by distribution

NuGet (.NET) · Microsoft.NETCore.App.Runtime.linux-arm · FIXED · 8.0.32 · vulnerable: >= 8.0.0, <= 8.0.31 · source

dotnet add package Microsoft.NETCore.App.Runtime.linux-arm --version 8.0.32

NuGet (.NET) · Microsoft.NETCore.App.Runtime.linux-arm64 · FIXED · 8.0.32 · vulnerable: >= 8.0.0, <= 8.0.31 · source

dotnet add package Microsoft.NETCore.App.Runtime.linux-arm64 --version 8.0.32

NuGet (.NET) · Microsoft.NETCore.App.Runtime.linux-musl-arm · FIXED · 8.0.32 · vulnerable: >= 8.0.0, <= 8.0.31 · source

dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm --version 8.0.32

NuGet (.NET) · Microsoft.NETCore.App.Runtime.linux-musl-arm64 · FIXED · 8.0.32 · vulnerable: >= 8.0.0, <= 8.0.31 · source

dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm64 --version 8.0.32

NuGet (.NET) · Microsoft.NETCore.App.Runtime.linux-musl-x64 · FIXED · 8.0.32 · vulnerable: >= 8.0.0, <= 8.0.31 · source

dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-x64 --version 8.0.32

NuGet (.NET) · Microsoft.NETCore.App.Runtime.linux-x64 · FIXED · 8.0.32 · vulnerable: >= 8.0.0, <= 8.0.31 · source

dotnet add package Microsoft.NETCore.App.Runtime.linux-x64 --version 8.0.32

Fedora ELN · ntpd-rs · FIXED · 1.7.2-3.eln159 · FEDORA-2026-57e4a99310 · source

sudo dnf upgrade --advisory=FEDORA-2026-57e4a99310

Fedora 46 · moby-engine · FIXED · 29.9.2-2.fc46 · FEDORA-2026-4856be87b3 · source

sudo dnf upgrade --advisory=FEDORA-2026-4856be87b3

Ubuntu 22.04 · dotnet6 · DEFERRED

Ubuntu 22.04 · dotnet8 · FIXED · 8.0.132-8.0.32-0ubuntu1~22.04.1

sudo apt update && sudo apt install --only-upgrade dotnet8 dpkg --compare-versions "$(dpkg-query -W -f='${Version}' dotnet8)" ge "8.0.132-8.0.32-0ubuntu1~22.04.1" && echo PATCHED || echo STILL-VULNERABLE

Ubuntu 24.04 · dotnet8 · FIXED · 8.0.132-8.0.32-0ubuntu1~24.04.1

sudo apt update && sudo apt install --only-upgrade dotnet8 dpkg --compare-versions "$(dpkg-query -W -f='${Version}' dotnet8)" ge "8.0.132-8.0.32-0ubuntu1~24.04.1" && echo PATCHED || echo STILL-VULNERABLE

Ubuntu 24.04 · dotnet10 · FIXED · 10.0.113-10.0.13-0ubuntu1~24.04.1

sudo apt update && sudo apt install --only-upgrade dotnet10 dpkg --compare-versions "$(dpkg-query -W -f='${Version}' dotnet10)" ge "10.0.113-10.0.13-0ubuntu1~24.04.1" && echo PATCHED || echo STILL-VULNERABLE

RHEL 10 · dotnet8.0 · FIXED · dotnet8.0-8.0.132-1.el10_2

sudo dnf upgrade --advisory=RHSA-2026:86168 rpm -q dotnet8.0

RHEL 10 · dotnet9.0 · FIXED · dotnet9.0-9.0.122-1.el10_2

sudo dnf upgrade --advisory=RHSA-2026:86172 rpm -q dotnet9.0

RHEL 10 · dotnet10.0 · FIXED · dotnet10.0-10.0.113-1.el10_2

sudo dnf upgrade --advisory=RHSA-2026:86195 rpm -q dotnet10.0

RHEL 10.0 Extended Update Support · dotnet9.0 · FIXED · dotnet9.0-9.0.122-1.el10_0

sudo dnf upgrade --advisory=RHSA-2026:88424 rpm -q dotnet9.0

RHEL 10.0 Extended Update Support · dotnet8.0 · FIXED · dotnet8.0-8.0.132-1.el10_0

sudo dnf upgrade --advisory=RHSA-2026:88474 rpm -q dotnet8.0

Alpine 3.22 · dotnet8-runtime · FIXED · dotnet8-runtime-8.0.32-r0

apk add --upgrade dotnet8-runtime apk info -v dotnet8-runtime

Alpine 3.22 · dotnet9-runtime · FIXED · dotnet9-runtime-9.0.21-r0

apk add --upgrade dotnet9-runtime apk info -v dotnet9-runtime

Alpine 3.23 · dotnet10-runtime · FIXED · dotnet10-runtime-10.0.13-r0

apk add --upgrade dotnet10-runtime apk info -v dotnet10-runtime

Alpine 3.23 · dotnet8-runtime · FIXED · dotnet8-runtime-8.0.32-r0

apk add --upgrade dotnet8-runtime apk info -v dotnet8-runtime

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-96231?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-96231 being exploited?

CVE-2026-96231 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-96231 affect?

CVE-2026-96231 affects affected software. Severity is high (CVSS 7.8). Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

How urgent is CVE-2026-96231?

Priority 39/100. High severity; On your watchlist

References

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