CVE-2021-30663
Apple Multiple Products WebKit Integer Overflow Vulnerability
8.8
HIGH
CVSS 3.1
⚠ KEVEPSS 0.96%
Description
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, Safari 14.1.1, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution.
How to fix CVE-2021-30663
To remediate CVE-2021-30663, upgrade the affected package to a fixed version below.
- —upgrade to 2.32.3-1 or later
- —upgrade to 2.32.3-1 or later
Is CVE-2021-30663 being exploited?
Yes — CVE-2021-30663 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (2)
- from 0, < 2.32.3-1
- from 0, < 2.32.3-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |