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CVE

CVE-2021-30681

A validation issue existed in the handling of symlinks. This issue was addressed with improved validation of symlinks. T

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 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5.

A malicious application may be able to gain root privileges.

HIGH · CVSS 7.8 EPSS 0.00157
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

7
apple ipados< 14.6
apple iphone os< 14.6
apple mac os x>= 10.14 and <= 10.14.5
apple mac os x>= 10.15 and <= 10.15.6
apple mac os xall versions
apple macos>= 11.0 and < 11.4
apple watchos< 7.5
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · product-security@apple.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Sep 2021 · 03:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.apple.com/en-us/HT212528Release NotesVendor Advisory
https://support.apple.com/en-us/HT212529Release NotesVendor Advisory
https://support.apple.com/en-us/HT212530Release NotesVendor Advisory
https://support.apple.com/en-us/HT212531Release NotesVendor Advisory
https://support.apple.com/en-us/HT212533Release NotesVendor Advisory
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