SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2020-27950

Apple Multiple Products Memory Initialization Vulnerability

KEVMEDIUM 5.5EPSS 16.5%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
16.52% probability · 97th percentile
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Weakness
CWE-665
Affected
apple/ipados · apple/iphone os · apple/macos · apple/watchos
Source
product-security@apple.com

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-27950

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.