CVE-2021-1876

HIGH

macOS 10.14-10.14.4 and 11.0-11.2 - Use-After-Free via Malicious Web Content

Title source: llm
STIX 2.1

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. Processing maliciously crafted web content may lead to arbitrary code execution.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212325
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212326
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212327

Scores

CVSS v3 8.8
EPSS 0.0122
EPSS Percentile 64.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (5)
apple/mac_os_x 10.14.6 (18 CPE variants)
apple/mac_os_x 10.15.6 (2 CPE variants)
apple/mac_os_x 10.15.7 (7 CPE variants)
apple/mac_os_x 10.14 - 10.14.5
apple/macos 11.0 - 11.3
Published Sep 08, 2021
Tracked Since Feb 18, 2026