Vulnerability · Published Sep 8, 2021 · Assigned by apple

CVE-2021-1815

Medium 5.5

In plain English

A medium-severity security flaw in iOS and iPadOS from Apple. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS NVD)5.5Medium

Exploit odds (30 days)0.4%top 65.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A parsing issue in the handling of directory paths was addressed with improved path validation. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. A local user may be able to modify protected parts of the file system.

Affected products (as reported)

Vendor	Product	Versions
Apple	iOS and iPadOS	unspecified – before 14.5
Apple	tvOS	unspecified – before 14.5
Apple	watchOS	unspecified – before 7.4
Apple	macOS	unspecified – before 11.3

References

https://support.apple.com/en-us/HT212317 x_refsource_MISC
https://support.apple.com/en-us/HT212323 x_refsource_MISC
https://support.apple.com/en-us/HT212324 x_refsource_MISC
https://support.apple.com/en-us/HT212325 x_refsource_MISC