Summary iPlain-English security verdict for .NET, generated from its current health score, actively-exploited vulnerabilities, and latest supported version.
.NET currently scores 100/100 — healthy. 2 actively-exploited vulnerabilities (CISA KEV) affect older releases (e.g. CVE-2023-44487) — staying on the latest supported version keeps you clear of them. The latest supported release is 10.0.9. It's on the latest patch with no significant known issues — keep it current.
Disclosure trend iNew CVEs published for .NET each year (NVD). A higher bar means more disclosures that year — more scrutiny, not necessarily less safe.
Patch priority — what to act on iThe issues to fix first — actively exploited (CISA KEV) first, then by exploitation probability (EPSS), then severity. Each row's "→ fixed in" is the earliest version that patches it; "see advisory" means no fixed version is published.
Most urgent first — actively exploited, then likeliest to be exploited.
CVE-2023-44487 HIGH exploited Uncontrolled resource consumption EPSS 100% → fixed in 7.0.12 CVE-2023-38180 HIGH exploited Uncontrolled resource consumption EPSS 16% → fixed in 7.0.10 CVE-2023-38171 HIGH CWE-476 EPSS 69% → fixed in 7.0.12 CVE-2021-26701 HIGH EPSS 30% → fixed in 5.0.4 CVE-2024-43498 CRITICAL CWE-843 EPSS 4% → see advisory CVE-2024-0057 CRITICAL Improper input validation EPSS 3% → fixed in 7.0.15Get alerted about .NET
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Versions & lifecycle iWhen each release line stops receiving security patches (end-of-life). After EOL there are no more fixes — plan upgrades before these dates.
How long each .NET release line is supported — and when it sunsets. Select a line for its full report.
Full .NET end-of-life dates & support timeline →
10 latest 10.0.9 Supported until 2028-11-1410.0.9 → 9 latest 9.0.17 Supported until 2026-11-109.0.17 → 8 latest 8.0.28 Supported until 2026-11-108.0.28 → 7 latest 7.0.20 End of life ended 2024-05-147.0.20 → 6 latest 6.0.36 End of life ended 2024-11-126.0.36 → 5 latest 5.0.17 End of life ended 2022-05-105.0.17 → 3.1 latest 3.1.32 End of life ended 2022-12-133.1.32 → 3.0 latest 3.0.3 End of life ended 2020-03-033.0.3 → 2.2 latest 2.2.8 End of life ended 2019-12-232.2.8 → 2.1 latest 2.1.30 End of life ended 2021-08-212.1.30 → See all upcoming end-of-life dates →Frequently asked
Is .NET safe and patched?
.NET currently scores 100/100 — healthy. 2 actively-exploited vulnerabilities (CISA KEV) affect older releases (e.g. CVE-2023-44487) — staying on the latest supported version keeps you clear of them. The latest supported release is 10.0.9. It's on the latest patch with no significant known issues — keep it current.
What should I do about .NET now?
Upgrade .NET to the latest supported release (10.0.9) or later, which clears the actively-exploited issues affecting older versions, then confirm against Microsoft's official advisory.
When does .NET reach end-of-life?
The latest supported .NET release is 10.0.9. After end-of-life a release no longer receives security patches.
Which versions of .NET are still receiving security updates?
Supported .NET release lines (latest 10.0.9): 10, 9, 8. End-of-life releases no longer receive security patches.
Informational only, from public data (NVD · CISA KEV · EPSS · endoflife.date), and can lag or miss vendor-specific fixes. Always confirm against Microsoft's official advisory before you patch or upgrade — .NET official site ↗