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CVE-2021-30666: Apple iOS

EPSS2.9%No. 1520 of 1739 in KEV
CVE year2021listed the same year
Same vendor in KEV95
Same product8
FieldValue
VendorApple
ProductiOS
NameApple iOS WebKit Buffer Overflow Vulnerability
Added to KEV2021-11-03
US federal due date2021-11-17
Ransomware useUnknown
CWECWE-119

CISA description

Apple iOS WebKit contains a buffer-overflow vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.

Other entries for this product

CVEVendor / productAddedEPSSRansomware
CVE-2022-42856Apple iOS2022-12-148.5%Unknown
CVE-2016-4657Apple iOS2022-05-2466.7%Unknown
CVE-2016-4656Apple iOS2022-05-2423.6%Unknown
CVE-2016-4655Apple iOS2022-05-2433.3%Unknown
CVE-2019-7287Apple iOS2022-05-234.5%Unknown
CVE-2021-30762Apple iOS2021-11-0310.9%Unknown
CVE-2021-30761Apple iOS2021-11-0310.5%Unknown

NVD — CVE-2021-30666

Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page

A Apple iOS vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2021-11-03.