CVE-2020-27932
HIGHCISA KEVEPSS 95th pctlDescription
A type confusion issue was addressed with improved state handling. 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 execute arbitrary code with kernel privileges.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 95% of all known CVEs.
Apple Multiple Products Type Confusion Vulnerability
Apple iOS, iPadOS, macOS, and watchOS contain a type confusion vulnerability that may allow a malicious application to execute code with kernel privileges.
Apply updates per vendor instructions.
Remediation due: 2022-05-03
References
- http://packetstormsecurity.com/files/161295/XNU-Kernel-Turnstiles-Type-Confusion.html
- http://seclists.org/fulldisclosure/2020/Dec/32
- https://support.apple.com/en-us/HT211928
- https://support.apple.com/en-us/HT211929
- https://support.apple.com/en-us/HT211931
- https://support.apple.com/en-us/HT211940
- https://support.apple.com/en-us/HT211944
- https://support.apple.com/en-us/HT211945
- https://support.apple.com/en-us/HT211946
- https://support.apple.com/en-us/HT211947
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-27932
Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-27.