SARA / Free Tools / CVE / CVE-2023-42866

CVE-2023-42866 — The issue was addressed with improved memory handling

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.

CVSS
EPSS
36.00% (top 41.90%)
CWE
Published
2024-01-10T22:03:15.576Z
Last modified
2025-06-03T14:27:15.217Z
CVSS vector

01What is this vulnerability?

The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.

02Affected products

VendorProductVersions
AppleSafariunspecified
AppletvOSunspecified
AppleiOS and iPadOSunspecified
ApplemacOSunspecified
ApplewatchOSunspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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