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Vulnerabilities

Vulnerability · RLSA-2026:92427

Important: .NET 9.0 security, bug fix, and enhancement update

Published Oct 31, 2026 · catalog updated Oct 31, 2026 · Important: .NET 9.0 security,

Last checked Oct 31, 2026. A connected source was read within the last 7 days.

Open the advisory

Exploitation likelihood is not on this record for RLSA-2026:92427. A missing EPSS score is not a low risk. Compare Important: .NET 9.0 security, with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Important: .NET 9.0 security,).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
Rocky Linux:8 dotnet9.0

.NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows. It particularly focuses on creating console applications, web applications and micro-services. .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything. SDK version: 9.0.123 Runtime version: 9.0.22 Security Fix(es): * dotnet8.0: dotnet9.0: dotnet11.0: dotnet10.0: ASP.NET Core Elevation of Privilege Vulnerability (CVE-2026-114148) Bug Fix(es) and Enhancement(s): * Update .NET 9.0 to SDK 9.0.123 and Runtime 9.0.22 (JIRA:Rocky Linux-291723) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Rocky Linux:8 dotnet9.00 → 0:9.0.123-1.el8_10

How to fix RLSA-2026:92427

  • Upgrade

    RLSA-2026:92427 lists a fix boundary at 0:9.0.123-1.el8_10. Compare the installed build with that boundary before you change production.

  • Version check

    Fixed in 0:9.0.123-1.el8_10

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for RLSA-2026:92427. A missing EPSS score is not a low risk. Compare Important: .NET 9.0 security, with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 0 → 0:9.0.123-1.el8_10. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Atlassian Jira security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 31, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    .NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows. It particularly focuses on creating console applications, web applications and micro-services. .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything. SDK version: 9.0.

  2. Oct 31, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    dotnet9.0 fixed in 0:9.0.123-1.el8_10

  3. Oct 31, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    dotnet9.0 fixed in 0:9.0.123-1.el8_10

  4. Oct 31, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    .NET is a fast, lightweight and modular platform for creating cross platform applications that work on Linux, macOS and Windows. It particularly focuses on creating console applications, web applications and micro-services. .NET contains a runtime conforming to .NET Standards a set of framework libraries, an SDK containing compilers and a 'dotnet' application to drive everything. SDK version: 9.0.

Sources

References

Freshness

Last verified in this catalog Oct 31, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • OpenSSF OSV / OSV ScannerOct 31, 2026