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Vulnerability record · CVE-2021-30833 · published 28 October 2021

CVE-2021-30833: Apple mac os x vulnerability

Apple · Mac Os X

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.

5.5 CVSS 3.1 Medium EPSS 43% · top 1.3%
5.5CVSS 3.1 base score, v2 4.3
43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.apple.com/en-us/HT212869 Vendor Advisory
https://support.apple.com/kb/HT212871 Vendor Advisory
https://support.apple.com/kb/HT212872 Vendor Advisory
https://support.apple.com/en-us/HT212869 Vendor Advisory
https://support.apple.com/kb/HT212871 Vendor Advisory
https://support.apple.com/kb/HT212872 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-30833), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.