CVE-2021-30698

HIGH

Safari < 14.1.1 - Denial of Service via Null Pointer Dereference

Title source: llm
STIX 2.1

Description

A null pointer dereference was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, Safari 14.1.1, iOS 14.6 and iPadOS 14.6. A remote attacker may be able to cause a denial of service.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212528
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212529
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212534

Scores

CVSS v3 7.5
EPSS 0.0211
EPSS Percentile 79.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-476
Status published
Products (4)
apple/ipados < 14.6
apple/iphone_os < 14.6
apple/macos 11.0 - 11.4
apple/safari < 14.1.1
Published Sep 08, 2021
Tracked Since Feb 18, 2026