TI-2020-16991 Aliases CVE-2020-27937 GHSA-2mc9-cvxq-r2xq

Apple macOS: A malicious application may be able to access private information

LOW 27Published 2021-04-02 · Updated 2024-08-04

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, macOS Big Sur 11.0.1. A malicious application may be able to access private information.

Why it matters now

EPSS 0.01233 69th percentileScored 2026-11-07

Fix Fixed macOS (Apple): 11.0, 11.2

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 11.0	11.0	Patch available	CNA
Apple	macOS	before 11.2	11.2	Patch available	CNA

macOS VendorApple Affected before 11.0 Fixed in 11.0 Patch available CNA
macOS VendorApple Affected before 11.2 Fixed in 11.2 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:mac_os_x::::::::	before 11.2.0; before 11.0.1	Vulnerable	Apple

cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 11.2.0; before 11.0.1 Vulnerable ·Apple

Remediation

Fix · CNA macOS (Apple) Fixed in 11.0
Fix · CNA macOS (Apple) Fixed in 11.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2021-04-02
Apple macOS 11.2
60 records Highest priority Priority CRITICAL 3 CRITICAL, 3 MEDIUM, 54 LOW
Other records, highest priority first
- TI-2021-01572 Apple iOS and iPadOS: A remote attacker may be able to cause arbitrary code executionPriority CRITICAL 100
- TI-2021-01502 Type confusion in Apple iOS and iPadOSPriority CRITICAL 97
- TI-2021-01495 Apple iOS and iPadOS: A malicious application may be able to elevate privilegesPriority CRITICAL 90
Show all 60 records →
Release · 2021-04-02
Apple macOS 11.0
31 records Highest priority Priority MEDIUM 1 MEDIUM, 30 LOW
Other records, highest priority first
- TI-2020-16976 Use after free in Apple watchOSPriority MEDIUM 41
- TI-2020-08038 Out-of-bounds write in Apple tvOSPriority LOW 39
- TI-2020-08033 Buffer overflow in Apple tvOSPriority LOW 37
Show all 31 records →

Timeline

2026-10-02 Threatist record created from CVE-2020-27937
2026-10-03 Alias added: GHSA-2mc9-cvxq-r2xq

References

Advisory 2

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

See all 3209 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences