Is CVE-2020-9934 actively exploited?

CVE-2020-9934 has no public evidence of in-the-wild exploitation as of 2025-10-23.

What is the CVSS score for CVE-2020-9934?

CVE-2020-9934 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

How do I patch CVE-2020-9934?

Patch guidance is available from apple security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-9934.

CVE-2020-9934 - remediation guidance & executive summary

Q: Which products are affected by CVE-2020-9934?

3 products: apple ipados, apple iphone os, apple mac os x.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: NVD-CWE-noinfo

Metadata

Primary Vendor: APPLE
Published: 10/16/2020
Last Modified: 10/23/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2020-9934

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary