CVE-2021-30855

MEDIUM

iPadOS < 14.8 - Improper Link Resolution Before File Access

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 Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, iOS 15 and iPadOS 15, watchOS 8, macOS Big Sur 11.6. An application may be able to access restricted files.

References (6)

Core 6
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212804
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212805
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212807
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212815
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212814
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212819

Scores

CVSS v3 5.5
EPSS 0.0240
EPSS Percentile 81.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-59
Status published
Products (7)
apple/ipados < 14.8
apple/iphone_os < 14.8
apple/mac_os_x 10.15.7 (7 CPE variants)
apple/mac_os_x < 10.15.7
apple/macos < 11.6
apple/tvos < 15.0
apple/watchos < 8.0
Published Aug 24, 2021
Tracked Since Feb 18, 2026