CVE-2021-30844

HIGH

macOS <11.6 - Info Disclosure

Title source: llm

Description

A logic issue was addressed with improved state management. This issue is fixed in Security Update 2021-005 Catalina, macOS Big Sur 11.6. A remote attacker may be able to leak memory.

References (4)

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/HT212804

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/HT212805

[Vendor Advisory] https://support.apple.com/kb/HT212871

[Vendor Advisory] https://support.apple.com/kb/HT212872

Scores

CVSS v3 7.5

EPSS 0.0057

EPSS Percentile 68.3%

Attack Vector NETWORK

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

Classification

CWE

CWE-401

Status published

Affected Products (12)

apple/mac_os_x < 10.15.6

apple/mac_os_x

apple/macos < 11.6.1

Timeline

Published Oct 19, 2021

Tracked Since Feb 18, 2026