$ cve CVE-2020-27950 JSON

CVE-2020-27950 KEV

5.5

MEDIUM · CVSS 3.1 · EPSS 16.5% (pctl 97)

Patch first

On CISA KEV — known exploited in the wild, due 2022-05-03.

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.

Scoring

CVSS	5.5 (MEDIUM, v3.1)
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS	16.52% — more likely to be exploited than 97% of all CVEs
Weakness	CWE-665
On CISA KEV	yes — remediate by 2022-05-03
Public exploit	none known
Published	2020-12-08
Last modified	2026-06-17

CISA KEV

Name	Apple Multiple Products Memory Initialization Vulnerability
Added	2021-11-03
Due	2022-05-03
Vendor / product	Apple / Multiple Products
Ransomware use	none reported

Affected (4)

Vendor	Product
apple	ipados
apple	iphone os
apple	macos
apple	watchos

References

→ the Explorer · watch your stack · NVD