Apple macOS: Unpacking a maliciously crafted archive may allow an attacker to write…
Priority MEDIUM 53Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.42674 98th percentileScored 2026-11-07
Fix Fixed macOS (Apple): 12.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | macOS | before 12.0 | 12.0 | Patch available | CNA |
- macOS VendorApple Affected before 12.0 Fixed in 12.0 Patch available CNA
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | 10.15 to before 10.15.7 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:* | 10.15.7 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:* | 10.15.7 security_update_2020 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* | 10.15.7 security_update_2020-001 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:* | 10.15.7 security_update_2020-005 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:* | 10.15.7 security_update_2020-007 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* | 10.15.7 security_update_2021-001 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:* | 10.15.7 security_update_2021-002 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:* | 10.15.7 security_update_2021-003 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:* | 10.15.7 security_update_2021-006 | Vulnerable | Apple |
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.15 to before 10.15.7 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:* Versions 10.15.7 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020:*:*:*:*:*:* Versions 10.15.7 security_update_2020 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-001:*:*:*:*:*:* Versions 10.15.7 security_update_2020-001 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-005:*:*:*:*:*:* Versions 10.15.7 security_update_2020-005 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2020-007:*:*:*:*:*:* Versions 10.15.7 security_update_2020-007 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:* Versions 10.15.7 security_update_2021-001 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:* Versions 10.15.7 security_update_2021-002 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:* Versions 10.15.7 security_update_2021-003 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-006:*:*:*:*:*:* Versions 10.15.7 security_update_2021-006 Vulnerable ·Apple
Remediation
- Fix · CNA macOS (Apple) Fixed in 12.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 12.0
5 records Highest priority Priority MEDIUM 1 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2021-11197 Out-of-bounds write in Apple macOSPriority LOW 36
- TI-2021-11195 Apple macOS: A malicious application may be able to execute arbitrary code with kernel…Priority LOW 36
- TI-2021-11196 Apple iOS and iPadOS: An attacker in a privileged network position may be able to bypass…Priority LOW 33
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-30833
- 2026-10-03 Alias added: GHSA-j64f-jw3r-9c68
References
More Apple Mac Os X vulnerabilities
- TI-2021-01573 Apple iOS and iPadOS: A remote attacker may be able to cause arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
- TI-2021-01572 Apple iOS and iPadOS: A remote attacker may be able to cause arbitrary code execution KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
- TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
- TI-2012-01607 sapi/cgi/cgi_main.c in PHP before 5.3.12 and 5.4.x before 5.4.2, when configured as a CGI… KEVCVSS 3.1CRITICAL 9.8
- TI-2022-02117 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
Sources
- CVE-2021-30833 · CVE Program
- CVE-2021-30833 · NVD
- FIRST EPSS
- GHSA-j64f-jw3r-9c68 · GitHub Advisory Database · CC BY 4.0
- CVE-2021-30833 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences