SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2020-9864

An application may be able to execute arbitrary code with kernel privileges.

CRITICAL 9.8EPSS 2.43%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.43%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A logic issue was addressed with improved restrictions. This issue is fixed in macOS Catalina 10.15.6. An application may be able to execute arbitrary code with kernel privileges.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
2.43% probability · 84th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
apple/mac os x
Source
product-security@apple.com
EPSS trend
0%3%5%26 October 2026: 2.43%26 October 202626 October 2026

EPSS 2.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.