Arbitrary File Overwrite Vulnerability Patched in macOS Big Sur 11.4 and Security Update 2021-004 Mojave

CVE-2021-30738 · MEDIUM Severity

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

A malicious application may be able to overwrite arbitrary files. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-004 Mojave. An issue with path validation logic for hardlinks was addressed with improved path sanitization.

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