Microsoft security update for CVE-2026-62871
🔗 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-2026-62871. This page also shows what EchelonGraph holds for CVE-2026-62871, 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 8.0 runtime installed on Windows
- .NET 9.0 runtime installed on Windows
- Microsoft Visual Studio 2022 version 17.14
- Microsoft Visual Studio 2026 version 18.8
✅ Updates Microsoft lists: 4 updates
4 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 | 8.0.30 |
| — | Security Update | 9.0.19 |
| — | Security Update | 18.8.3 |
| — | Security Update | 17.14.38 |
🧭 EchelonGraph on CVE-2026-62871
- EchelonGraph score
- 7.8 HIGH
- 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
Out-of-bounds write in .NET allows an unauthorized attacker to execute code locally.
Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2026-62871, 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).