Vulnerability Intelligence Report
Apple Multiple Products Memory Initialization Vulnerability
CVE-2020-27950
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.
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
5.5
MEDIUM
Exploitability:1.9
Impact Score:3.6
EPSS Probability:16.52%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-665 ↗CWE-665 Improper Initialization
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Apple | watchOS | unspecified < 7.1 (affected) |
| Apple | iOS and iPadOS | unspecified < 14.2 (affected) |
| Apple | macOS | unspecified < 11.0 (affected) |
| Apple | macOS | unspecified < 12.4 (affected) |
| Apple | macOS | unspecified < 6.2 (affected) |
| Apple | macOS | unspecified < 5.3 (affected) |
| Apple | macOS | unspecified < 2020 (affected) |
| Apple | macOS | unspecified < 10.15 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Apple Inc. · Vendor · USA |
| Reserved | 2020-10-27T00:00:00 |
| Published | 2020-12-08T20:17:24 |
| Last Updated | 2025-10-21T23:35:32 |
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