CVEvulnerability

CVE-2020-9934

5.5 MEDIUM Known exploited Published 2020-10-16 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Apple iOS, iPadOS, and macOS Input Validation Vulnerability — Apple iOS, iPadOS, and macOS

Apple iOS, iPadOS, and macOS contain an unspecified vulnerability involving input validation which can allow a local attacker to view sensitive user information.

Added to KEV
2022-09-08
Remediation due
2022-09-29
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://support.apple.com/en-us/HT211288, https://support.apple.com/en-us/HT211289; https://nvd.nist.gov/vuln/detail/CVE-2020-9934
Status
Analyzed
Published
2020-10-16
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N

Description

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.

Affected configurations

• apple ipados (< 13.6) • apple iphone os (< 13.6) • apple mac os x (< 10.15.6)

References