CVE-2021-30799

HIGH

iPhone OS < 14.7 and macOS < 10.14.6, 11.0-11.5 - Remote Code Execution via Malicious Web Content

Title source: llm
STIX 2.1

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. Processing maliciously crafted web content may lead to arbitrary code execution.

References (4)

Core 4
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212601
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212602
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212600
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212603

Scores

CVSS v3 8.8
EPSS 0.0216
EPSS Percentile 80.0%
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-787
Status published
Products (6)
apple/iphone_os < 14.7
apple/mac_os_x 10.14.6 security_update_2019-001 (19 CPE variants)
apple/mac_os_x 10.15.6 supplemental_update
apple/mac_os_x 10.15.7 security_update_2020 (7 CPE variants)
apple/mac_os_x 10.14 - 10.14.6
apple/macos 11.0 - 11.5
Published Sep 08, 2021
Tracked Since Feb 18, 2026