CVE-2020-9934

An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6. A local user may be able to view sensitive user information.

Score

CVSS 3.1 5.5 Medium

Status

Analyzed - product-security@apple.com

Published

2020-10-16

Last modified

2025-10-21

Known exploited (CISA KEV)

since 2022-09-08, action due 2022-09-29: Apply updates per vendor instructions.

Affected products

• Ios (Apple)
• Ipados (Apple)
• Iphone Os (Apple)
• Mac Os X (Apple)
• Macos (Apple)

References

• https://support.apple.com/HT211288
• https://support.apple.com/HT211289
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9934