What’s Vulnerable › Vulnerabilities
CVE-2021-30845
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-10-19 · updated 2026-06-17
- Weakness: CWE-125
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6. A local user may be able to read kernel memory.
Affected products
- Apple macOS: from 11.0 before 11.6 — fixed in 11.6
How to fix
Upgrade to a fixed version: Apple macOS 11.6. Check the vendor advisory for mitigations.
References
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