Patch tracker / Products / 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 2022: vulnerabilities and security updates

Every CVE affecting Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022 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
49
Updates (KBs)
9
Actively exploited (KEV)
0
Critical Severity
0

CVEs affecting Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022

CVESeverityCVSSEPSSStatus
CVE-2025-21176High8.82.4%-
CVE-2026-70035High8.81.4%-
CVE-2026-83520High8.81.4%-
CVE-2026-70174High8.80.9%-
CVE-2026-85363High8.80.9%-
CVE-2026-69522High8.80.8%-
CVE-2026-102869High8.80.8%-
CVE-2026-70007High8.80.8%-
CVE-2026-108398High8.80.8%-
CVE-2026-62872High8.80.8%-
CVE-2026-96224High8.80.8%-
CVE-2026-50646High7.84.0%-
CVE-2026-50649High7.84.0%-
CVE-2024-43484High7.53.0%-
CVE-2024-43483High7.52.9%-
CVE-2026-47304High8.10.3%-
CVE-2026-33116High7.52.1%-
CVE-2026-50652High7.51.7%-
CVE-2026-62886High7.80.5%-
CVE-2026-50650High7.80.5%-
CVE-2026-65810High7.80.4%-
CVE-2026-70354High7.80.4%-
CVE-2026-23666High7.51.3%-
CVE-2026-58280High7.51.3%-
CVE-2026-69651High7.51.3%-
CVE-2026-96958High7.51.2%-
CVE-2026-96960High7.51.2%-
CVE-2026-47302High7.51.2%-
CVE-2026-50304High7.51.2%-
CVE-2026-50355High7.51.2%-
CVE-2026-50368High7.51.2%-
CVE-2026-50411High7.51.2%-
CVE-2026-50525High7.51.2%-
CVE-2026-50527High7.51.2%-
CVE-2026-50647High7.51.2%-
CVE-2026-50648High7.51.2%-
CVE-2026-50653High7.51.2%-
CVE-2026-84008High7.51.0%-
CVE-2026-96233High7.51.0%-
CVE-2026-96959High7.51.0%-
CVE-2026-97788High7.50.9%-
CVE-2026-97801High7.50.7%-
CVE-2026-96222High7.40.6%-
CVE-2026-35433High7.30.8%-
CVE-2026-32177High7.30.6%-
CVE-2026-50659Medium6.50.7%-
CVE-2026-50324Medium5.90.9%-
CVE-2026-32226Medium5.90.5%-
CVE-2025-55248Medium4.80.7%-

Updates (KBs) for Microsoft .NET Framework 3.5 AND 4.8.1 on Windows Server 2022

UpdateReleasedSeverityCVSSEPSSCVEsStatus
KB50501872025-01-14High8.82.4%1-
KB51276932026-10-13High8.81.4%19-
KB51010052026-07-14High8.14.0%17-
KB51264222026-09-08High8.80.8%1-
KB51207142026-08-11High8.80.8%3-
KB50440992024-10-08High7.53.0%2-
KB50824252026-04-14High7.52.1%3-
KB50870592026-05-12High7.30.8%2-
KB50667432025-10-14Medium4.80.7%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 KB5129238: the full CVE list KB5126651 download and what it fixes KB5122882: the full CVE list KB5129235: the full CVE list KB5126655: patch details KB5126657 install notes and severity KB5123099 install notes and severity KB5122871 install notes and severity
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.
All information provided as is, without warranty; verify against the vendor advisory before acting. All information and usage is subject to the Senserva EULA. Data notice and terms.