CVE-2020-9859

Published: Jun 5, 2020Modified: Oct 23, 2025CISA KEV

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5.1 and iPadOS 13.5.1, macOS Catalina 10.15.5 Supplemental Update, tvOS 13.4.6, watchOS 6.2.6. An application may be able to execute arbitrary code with kernel privileges.

Affected (5)

Products: Apple: Ipados, Iphone Os, Mac Os X, Tvos, Watchos

5 products

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Apple Ipados	Before 13.5.1
Apple Iphone Os	Before 13.5.1
Apple Mac Os X	Before 10.15.5
Apple Tvos	Before 13.4.6
Apple Watchos	Before 6.2.6

Related CWEs

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

References (3)

https://support.apple.com/HT211214

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/HT211214

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9859

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

Timeline

No history available yet.