Microsoft security update for CVE-2026-120796
🔗 CVE IDs covered (1)
📋 Microsoft's advisory
EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-120796. This page also shows what EchelonGraph holds for CVE-2026-120796, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.
🎯 Affected products4
- .NET 11.0 installed on Linux
- .NET 11.0 installed on Mac OS
- .NET 11.0 installed on Windows
- System.Text.Json
✅ Updates Microsoft lists: 2 updates
2 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.
| KB article | Update | Fixed build |
|---|---|---|
| — | Security Update | 11.0.0 |
| — | Security Update | 11.0.0 |
🧭 EchelonGraph on CVE-2026-120796
- EchelonGraph score
- 5.3 MEDIUM
- CISA KEV
- Not listed
- Fix status
- A fix is available — apply it.
Description from the CVE record (CVE.org), as published by its numbering authority
Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.
Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2026-120796, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).
🔗 References (5)
- advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-120796
- patchhttps://dotnet.microsoft.com/en-us/download/dotnet/11.0
- referencehttps://github.com/dotnet/core/blob/main/release-notes/11.0/11.0.0/11.0.0.md
- patchhttps://globalcdn.nuget.org/packages/system.text.json.11.0.0.nupkg
- referencehttps://github.com/dotnet/runtime/security/advisories/GHSA-cpw3-h88j-9f6x