CVEvulnerability

CVE-2020-27950

5.5 MEDIUM Known exploited Published 2020-12-08 Modified 2026-06-17 Official page ↗

CISA Known Exploited Vulnerability

Apple Multiple Products Memory Initialization Vulnerability — Apple Multiple Products

Apple iOS, iPadOS, macOS, and watchOS contain a memory initialization vulnerability that may allow a malicious application to disclose kernel memory.

Added to KEV
2021-11-03
Remediation due
2022-05-03
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2020-27950
Status
Analyzed
Published
2020-12-08
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
7.1 HIGH — AV:N/AC:M/Au:N/C:C/I:N/A:N
Weaknesses
CWE-665

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.

Affected configurations

• apple ipados (< 14.2) • apple iphone os (< 12.4.9) • apple iphone os (>= 14.0 < 14.2) • apple macos (< 10.15.7) • apple macos (>= 11.0 < 11.0.1) • apple watchos (< 5.3.9) • apple watchos (>= 6.0 < 6.2.9) • apple watchos (>= 7.0 < 7.1)

Related

Weakness · CWE (1)

  • CWE-665 Improper Initialization weakness

References