SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-30990

A malicious application may bypass Gatekeeper checks.

MEDIUM 5.5EPSS 0.98%

Does this matter?

Lower severity and a low EPSS score (0.98%). Track it; it rarely justifies an emergency change on its own.

Description

A logic issue was addressed with improved validation. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious application may bypass Gatekeeper checks.

CVSS 3.1
5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS
0.98% probability · 62th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Affected
apple/mac os x · apple/macos
Source
product-security@apple.com
EPSS trend
0%3%5%26 October 2026: 0.98%26 October 202626 October 2026

EPSS 1.0% 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.