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CVE Record
[ HIGH ]CVE-2021-30858

Apple iOS, iPadOS, macOS Use-After-Free Vulnerability

Apple iOS, iPadOS, and macOS WebKit contain a use-after-free 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.

cat cve-2021-30858.json
Vendor
Apple
Product
iOS, iPadOS, and macOS
CVSS
8.8
EPSS (exploit probability)
13.5%
Status
kev
CISA patch-by (BOD 22-01)
Published
Source
https://nvd.nist.gov/vuln/detail/CVE-2021-30858

Apple iOS, iPadOS, and macOS WebKit contain a use-after-free 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.

Added to CISA’s Known Exploited Vulnerabilities catalog on 2021-11-03. Required action per CISA: Apply updates per vendor instructions. Due date: 2021-11-17.

This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.