CVE-2020-9855 — Improper Input Validation in Apple Macos

CWE-20 — Improper Input Validation2 documents2 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 84.25%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Apple MacosApple MAC OS X
Timeline
PublishedJun 9
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶CVEListV5apple/macosunspecified — macOS Catalina 10.15.5
▶NVDapple/mac_os_x< 10.15.5

🔴Vulnerability Details

1
GHSA
GHSA-326p-6v47-q438: A validation issue existed in the handling of symlinks↗2022-05-24
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CVE-2020-9855 — Improper Input Validation in Apple | cvebase