Patch tracker / Products / Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2

Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2: vulnerabilities and security updates

Every CVE affecting Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2 and the Microsoft update (KB) that fixes it, ranked by real-world risk. Actively exploited (CISA KEV) first, then EPSS exploit probability, on top of CVSS severity.

CVEs
7
Updates (KBs)
4
Actively exploited (KEV)
0
Critical Severity
1

CVEs affecting Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2

CVESeverityCVSSEPSSStatus
CVE-2025-21176High8.881%-
CVE-2025-55248Critical9.966%-
CVE-2024-43483High7.567%-
CVE-2024-43484High7.567%-
CVE-2026-23666High7.52.4%-
CVE-2026-32226High7.52.4%-
CVE-2026-33116High7.52.4%-

Updates (KBs) for Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 22H2

UpdateReleasedSeverityCVSSEPSSCVEsStatus
KB50496242025-01-14High8.82.4%1-
KB50440332024-10-08High7.53.0%2-
KB50824242026-04-14High7.52.4%3-
KB50661332025-10-14Medium4.80.7%1-

Ranked across all products on the Microsoft patch tracker and the CVE and vulnerability management reference. Browse every product: product index.

Most searched on Senserva right now

KB5122876 install notes and severity KB5126052: the full CVE list KB5122882: patch details KB5123099: the full CVE list KB5120708 download and what it fixes KB5122871 install notes and severity KB5129235 install notes and severity KB5122878: patch details KB5120238 download and what it fixes KB5129238 download and what it fixes
New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
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