🛡 CVE-2021-30663
Apple Multiple Products WebKit Integer Overflow Vulnerability
Apple Multiple Products CWE-20 CWE-190
Ransomware use
—
CISA KEV
EPSS
3.7%
Moderate · 89th pct
Added to KEV
2021-11-03
CISA
Remediate by
2021-11-17
⚠ OVERDUE
CWE
CWE-20 CWE-190
weakness
📈 EPSS exploit probability
3.7%
FIRST EPSS — 30-day probability of exploitation in the wild · band Moderate · higher than 89% of all scored CVEs
⚠ KEV remediation overdue
CISA required federal remediation by 2021-11-17. This exploited vulnerability is past its Binding Operational Directive 22-01 due date — prioritize patch/mitigation and hunt for exploitation.
📄 Description
Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain an integer overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, includin
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