OS X vulnerabilities: known CVEs & security history
Apple · Actively exploited · 38 tracked CVEs · 3 actively exploited · updated November 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all OS X release lines — 38 in total, with 3 actively exploited in the wild. A CVE here doesn't mean your version is affected — check OS X's current status and the safe version to run.
Known OS X CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2016-1019⚡ exploited | critical | 9.8 | 22% | 2016 |
| CVE-2022-2294⚡ exploited | high | 8.8 | 70% | 2022 |
| CVE-2018-15982⚡ exploited | high | 7.8 | 90% | 2019 |
| CVE-2016-9841 | critical | 9.8 | 8% | 2017 |
| CVE-2016-4658 | critical | 9.8 | 9% | 2016 |
| CVE-2016-0718 | critical | 9.8 | 13% | 2016 |
| CVE-2021-39537 | high | 8.8 | 3% | 2021 |
| CVE-2016-9842 | high | 8.8 | 5% | 2017 |
| CVE-2016-9840 | high | 8.8 | 5% | 2017 |
| CVE-2016-5131 | high | 8.8 | 2% | 2016 |
| CVE-2011-0627 | high | 8.8 | 5% | 2011 |
| CVE-2021-4136 | high | 7.8 | 2% | 2021 |
| CVE-2018-25032 | high | 7.5 | 52% | 2022 |
| CVE-2022-23308 | high | 7.5 | 5% | 2022 |
| CVE-2020-25709 | high | 7.5 | 3% | 2021 |
| CVE-2020-36230 | high | 7.5 | 12% | 2021 |
| CVE-2020-36229 | high | 7.5 | 4% | 2021 |
| CVE-2020-36226 | high | 7.5 | 4% | 2021 |
| CVE-2020-36224 | high | 7.5 | 4% | 2021 |
| CVE-2020-36223 | high | 7.5 | 4% | 2021 |
| CVE-2020-36222 | high | 7.5 | 77% | 2021 |
| CVE-2020-36221 | high | 7.5 | 85% | 2021 |
| CVE-2020-8286 | high | 7.5 | 5% | 2020 |
| CVE-2020-8285 | high | 7.5 | 10% | 2020 |
| CVE-2020-12243 | high | 7.5 | 4% | 2020 |
| CVE-2019-19906 | high | 7.5 | 8% | 2019 |
| CVE-2019-13565 | high | 7.5 | 5% | 2019 |
| CVE-2015-8126 | high | 7.5 | 10% | 2015 |
| CVE-2006-1469 | high | 7.5 | 5% | 2006 |
| CVE-2021-4166 | high | 7.1 | 2% | 2021 |
| CVE-2022-0530 | medium | 5.5 | 2% | 2022 |
| CVE-2021-22925 | medium | 5.3 | 5% | 2021 |
| CVE-2006-1470 | medium | 5 | 8% | 2006 |
| CVE-2006-1468 | medium | 5 | 2% | 2006 |
| CVE-2019-13057 | medium | 4.9 | 3% | 2019 |
| CVE-2006-1471 | medium | 4.6 | 0% | 2006 |
| CVE-2019-8906 | medium | 4.4 | 0% | 2019 |
| CVE-2020-8284 | low | 3.7 | 4% | 2020 |
Is my OS X version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your OS X version → · Monitor OS X for new CVEs →
OS X vulnerabilities — frequently asked
How many known vulnerabilities does OS X have?
IsItPatched tracks 38 CVEs for OS X, 3 of which are actively exploited (CISA KEV). 4 are critical-severity and 26 high-severity. These span every release line — what matters is whether the version you run is affected.
Does OS X have any actively-exploited vulnerabilities?
Yes — 3 OS X CVEs are in CISA's Known Exploited Vulnerabilities catalog, meaning they are confirmed exploited in the wild (3 linked to ransomware). Patch these as a priority.
What is the most severe OS X vulnerability?
Among tracked issues, CVE-2016-1019 (CRITICAL, CVSS 9.8), which is actively exploited, ranks highest.
Is OS X safe to use?
It depends on the version. The latest supported OS X release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: OS X security status · OS X end-of-life · actively-exploited CVEs. Always verify against Apple's advisories — see our disclaimer.