Is CVE-2020-27950 actively exploited?

CVE-2020-27950 has no public evidence of in-the-wild exploitation as of 2025-10-27.

What is the CVSS score for CVE-2020-27950?

CVE-2020-27950 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

How do I patch CVE-2020-27950?

Patch guidance is available from apple security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-27950.

CVE-2020-27950 - remediation guidance & executive summary

Q: Which products are affected by CVE-2020-27950?

8 products: apple ipados, apple iphone os, apple iphone os, apple macos, apple macos, and 3 more.

Description

A memory initialization issue was addressed. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. A malicious application may be able to disclose kernel memory.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Attack Vector: local
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Weaknesses: CWE-665 CWE-665

Metadata

Primary Vendor: APPLE
Published: 12/8/2020
Last Modified: 10/27/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

apple : ipadosapple : iphone_osapple : iphone_osapple : macosapple : macosapple : watchosapple : watchosapple : watchos

Remediation Guidance

Executive Summary

View on NIST NVD