macOS Mac OS X 10.0 (Cheetah) End of Life Date
macOS Mac OS X 10.0 (Cheetah) end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
macOS 10.0 was released on March 24, 2001 and support ended on June 22, 2001 — a supported lifespan of 3 months, shorter than the 2 years and 11 months median for macOS releases. The last patch it will ever receive is 10.0.4, published June 22, 2001 — on the day support ended. It has been without security patches for 25 years and 2 months. 21 newer macOS releases have shipped since.
| Version | Latest | EOL Date | Status |
|---|---|---|---|
| → Mac OS X 10.0 (Cheetah) | 10.0.4 | Jun 22, 2001 | EOL |
| Mac OS X 10.1 (Puma) | 10.1.5 | Jun 6, 2002 | EOL |
| Mac OS X 10.2 (Jaguar) | 10.2.8 | Oct 3, 2003 | EOL |
| Mac OS X 10.3 (Panther) | 10.3.9 | Apr 15, 2005 | EOL |
| Mac OS X 10.4 (Tiger) | 10.4.11 | Nov 14, 2007 | EOL |
| Mac OS X 10.5 (Leopard) | 10.5.8 | Aug 13, 2009 | EOL |
| Mac OS X 10.6 (Snow Leopard) | 10.6.8 | Jul 25, 2011 | EOL |
| Mac OS X 10.7 (Lion) | 10.7.5 | Oct 4, 2012 | EOL |
What does macOS Mac OS X 10.0 (Cheetah) end of life mean?
When macOS Mac OS X 10.0 (Cheetah) reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running macOS Mac OS X 10.0 (Cheetah) past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to macOS 26 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.