.NET ↗
Microsoft · Web / Runtime
100/100 Healthy
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.
'19
'20
'21
'22
'23
'24
'25
'26
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 94% → fixed in 7.0.12 CVE-2023-38180 HIGH ● exploited Uncontrolled resource consumption EPSS 1% → fixed in 7.0.10 CVE-2024-21409 HIGH Use-after-free EPSS 58% → fixed in 8.0.4 CVE-2024-0057 CRITICAL Improper input validation EPSS 4% → fixed in 7.0.15 CVE-2024-43498 CRITICAL CWE-843 EPSS 1% → see advisoryVersions & 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.
10 latest 10.0.9 Supported until 2028-11-14
9 latest 9.0.17 Supported until 2026-11-10
8 latest 8.0.28 Supported until 2026-11-10
7 latest 7.0.20 End of life ended 2024-05-14
6 latest 6.0.36 End of life ended 2024-11-12
5 latest 5.0.17 End of life ended 2022-05-10
3.1 latest 3.1.32 End of life ended 2022-12-13
3.0 latest 3.0.3 End of life ended 2020-03-03
2.2 latest 2.2.8 End of life ended 2019-12-23
2.1 latest 2.1.30 End of life ended 2021-08-21
See all upcoming end-of-life dates →