Vulnerability · Published Oct 28, 2021 · Assigned by apple

CVE-2021-30833

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 42.7% (higher than 99% of all known vulnerabilities).

Severity (CVSS NVD)5.5Medium

Exploit odds (30 days)42.7%top 1.3% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

This issue was addressed with improved checks. This issue is fixed in macOS Monterey 12.0.1. Unpacking a maliciously crafted archive may allow an attacker to write arbitrary files.

Affected products (as reported)

Vendor	Product	Versions
Apple	macOS	unspecified – before 12.0

References

https://support.apple.com/kb/HT212871 x_refsource_CONFIRM
https://support.apple.com/kb/HT212872 x_refsource_CONFIRM
https://support.apple.com/en-us/HT212869 x_refsource_MISC