Vulnerability · Published Aug 24, 2021 · Assigned by apple
CVE-2021-30855
Medium 5.5
In plain English
A medium-severity security flaw in macOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities).
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)2.4%top 15.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
References
- https://support.apple.com/en-us/HT212804 x_refsource_MISC
- https://support.apple.com/en-us/HT212805 x_refsource_MISC
- https://support.apple.com/en-us/HT212807 x_refsource_MISC
- https://support.apple.com/kb/HT212815 x_refsource_CONFIRM
- https://support.apple.com/en-us/HT212814 x_refsource_MISC
- https://support.apple.com/en-us/HT212819 x_refsource_MISC