CVE-2026-32177HighMicrosoft CVSS 7.3CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C

Microsoft security update for CVE-2026-32177

Published
May 22, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-32177 →

📋 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-2026-32177. This page also shows what EchelonGraph holds for CVE-2026-32177, 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 products36

  • .NET 10.0 installed on Windows
  • .NET 8.0 installed on Windows
  • .NET 9.0 installed on Windows
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 21H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 22H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019
  • Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2022
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 22H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 23H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 25H2 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 26H1 for ARM64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 version 26H1 for x64-based Systems
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022
  • Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2025
  • Microsoft .NET Framework 3.5 on Windows Server 2012
  • Microsoft .NET Framework 3.5 on Windows Server 2012 R2
  • Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012
  • Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2
  • Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems
  • +6 more not shown

✅ Updates Microsoft lists: 17 KB articles and 6 other updates

23 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
—Security Update10.0.8
—Security Update8.0.27
—Security Update9.0.16
—Security Update17.12.20
—Security Update17.14.32
—Security Update18.5.3
KB5087065Security Update4.8.9334.0 and 4.8.4802.0
KB5087067Security Update4.8.9334.0 and 4.8.4802.0
KB5087069Security Update4.8.9334.0 and 4.8.4802.0
KB5087066Security Update4.8.9334.0 and 4.8.4802.0
KB5087068Security Update4.8.9334.0 and 4.8.4802.0
KB5087064Security Update4.8.9334.0 and 4.8.4802.0
KB5087061Security Update4.8.9334.0 and 4.8.4802.0
KB5087062Security Update4.8.9334.0 and 4.8.4802.0
KB5087063Security Update4.8.9334.0 and 4.8.4802.0
KB5087059Security Update4.8.9334.0 and 4.8.4802.0
KB5087053Security Update4.8.9334.0 and 4.8.4802.0
KB5087051Security Update4.8.9334.0 and 4.8.4802.0
KB5087055Security Update4.8.9334.0 and 4.8.4802.0
KB5087058Security Update4.8.9334.0 and 4.8.4802.0
KB5087054Security Update4.8.9334.0 and 4.8.4802.0
KB5087048Security Update4.8.9334.0 and 4.8.4802.0
KB5087049Security Update4.8.9334.0 and 4.8.4802.0

🧭 EchelonGraph on CVE-2026-32177

EchelonGraph score
7.3 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

Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2026-32177, 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 (47)