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CVE-2023-42916: Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

criticalknown exploitedCVE-2023-42916
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Apple iOS, iPadOS, macOS, and Safari WebKit contain an out-of-bounds read vulnerability that may disclose sensitive information 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.

CSIRTS triage

vendor: AppleInformation disclosure
What
An out-of-bounds read vulnerability in WebKit may disclose sensitive information when processing malicious web content.
Who is affected
Users of Apple iOS, iPadOS, macOS, and Safari are affected by this vulnerability.
Urgency
Remediation is critical due to active exploitation and the potential for sensitive data exposure.
Action
Update to the latest version of affected Apple products.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-12-04
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-42916

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-42916coverage & exploitation statusNVD · CVE.org

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