CVE-2023-37450
Apple iOS, iPadOS, macOS, and Safari WebKit contain an unspecified 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.
The issue was addressed with improved checks. This issue is fixed in iOS 16.6 and iPadOS 16.6, Safari 16.5.2, tvOS 16.6, macOS Ventura 13.5, watchOS 9.6. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H- security.gentoo.org/glsa/202401-04Third Party Advisory
- support.apple.com/en-us/HT213826Vendor Advisory
- support.apple.com/en-us/HT213841Vendor Advisory
- support.apple.com/en-us/HT213843Vendor Advisory
- support.apple.com/en-us/HT213846Vendor Advisory
- support.apple.com/en-us/HT213848Vendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-37450US Government Resource
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 1180 days
- CVSS
- 8.8 HIGH
- EPSS (30-day exploit probability)
- 18.9% · top 3% of all CVEs
- Weakness
- NVD-CWE-noinfo
- Attack vector
- Network, remotely reachable
- 1.Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.