CVE-2020-9855

HIGH

macOS < 10.15.5 - Privilege Escalation via Symlink Validation Issue

Title source: llm
STIX 2.1

Description

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 10.15.5. A local attacker may be able to elevate their privileges.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/HT211170

Scores

CVSS v3 7.8
EPSS 0.0027
EPSS Percentile 19.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-20
Status published
Products (1)
apple/mac_os_x < 10.15.5
Published Jun 09, 2020
Tracked Since Feb 18, 2026