Live › vulnerability › CVE-2023-42917
Go to dashboardA memory corruption bug in Apple's WebKit engine, used by iOS, iPadOS, macOS and Safari, lets crafted web content run code. It is listed as actively exploited in the wild.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| Apple Multiple Products | vendor | – | – |
| apple safari | vendor | < 17.1.2 | 17.1.2 |
| apple ipados | vendor | < 15.8.1 | 15.8.1 |
| apple ipados | vendor | >= 16.0, < 16.7.3 | 16.7.3 |
| apple ipados | vendor | >= 17.0, < 17.1.2 | 17.1.2 |
| apple iphone os | vendor | < 15.8.1 | 15.8.1 |
| apple iphone os | vendor | >= 16.0, < 16.7.3 | 16.7.3 |
| apple iphone os | vendor | >= 17.0, < 17.1.2 | 17.1.2 |
| apple macos | vendor | >= 14.0, < 14.1.2 | 14.1.2 |
| debian linux | vendor | = 11.0 | – |
| debian linux | vendor | = 12.0 | – |
| fedoraproject fedora | vendor | = 38 | – |
| fedoraproject fedora | vendor | = 39 | – |
| webkitgtk webkitgtk\+ | vendor | < 2.42.3 | 2.42.3 |
Check the device OS version under Settings > General > About (iOS/iPadOS) or Apple menu > About This Mac (macOS) and compare it to the patched release named by Apple.
Update iOS, iPadOS, macOS and Safari to the patched versions Apple published for this CVE; CISA requires vendor remediation or discontinued use.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
Apple iOS, iPadOS, macOS, and Safari WebKit contain a memory corruption 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.
CISA required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
This page as .md · .json · in your agent: get_signal("CVE-2023-42917")
CISA KEV catalog, Creative Commons 0 · NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.