Vulnerability record · CVE-2020-3830 · published 27 February 2020

CVE-2020-3830: Apple mac os x link following vulnerability

Apple · Mac Os X

A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. This issue is fixed in macOS Catalina 10.15.3. A malicious application may be able to overwrite arbitrary files.

3.3 CVSS 3.1 Low EPSS 0.33% · top 76.3% CWE-59 · Link following

3.3CVSS 3.1 base score, v2 3.6

0.33%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

2References

17 Jun 2026Last modified by NVD

Description

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Mac Os X Apple

References

Link	Tags
https://support.apple.com/HT210919	Release NotesVendor Advisory
https://support.apple.com/HT210919	Release NotesVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2020-3830), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.