Microsoft · Microsoft
Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems security updates
Patch Radar has 16 security fixes for Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 10 Version 21H2 for 32-bit Systems, closing 55 CVEs, 1 of which is being exploited. The newest security fix is KB5126421, released September 8, 2026. This product is no longer supported.
Unsupported product1 exploited CVEs
Latest version
n/a
Release date not known
Security fixes
16
On record in Patch Radar
CVEs
55
Closed by those fixes
Exploited
1
Vendor report or CISA KEV
Security fixes, newest first
| Priority | Fix | Fixed in | CVEs | Exploited | Released |
|---|---|---|---|---|---|
| High | KB5126421 | 2 | Sep 8, 2026 | ||
| High | KB5120709 | 4 | Aug 11, 2026 | ||
| High | KB5101000 | 17 | Jul 14, 2026 | ||
| Urgent | KB5082419 | 3 | Apr 14, 2026 | ||
| High | KB5066746 | 1 | Oct 14, 2025 | ||
| High | KB5050416 | 1 | Jan 14, 2025 | ||
| High | KB5044090 | 2 | Oct 23, 2024 | ||
| High | KB5041018 | 1 | Jul 9, 2024 | ||
| Patch now | KB5034274 | 5 | 1 | May 8, 2024 | |
| High | KB5037035 | 1 | Apr 9, 2024 | ||
| Urgent | KB5030179 | 5 | Dec 12, 2023 | ||
| High | KB5032338 | 2 | Nov 14, 2023 | ||
| High | KB5029648 | 2 | Aug 8, 2023 | ||
| Urgent | KB5027537 | 6 | Jun 13, 2023 | ||
| Urgent | KB5022728 | 2 | Feb 14, 2023 | ||
| High | KB5021088 | 1 | Dec 13, 2022 |
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