Is CVE-2023-42916 actively exploited?

Yes. CVE-2023-42916 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2023-42916 be exploited remotely?

The attack vector of CVE-2023-42916 has not been classified yet.

What is the CVSS score of CVE-2023-42916?

CVE-2023-42916 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2023-42916

HIGHCISA KEVIN THE WILD

CVE-2023-42916

Published: December 4, 2023

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.4th

Official Description

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.

NVD Source

CISA KEV Advisory

Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability

Added to KEV: 2023-12-04Federal patch deadline: 2023-12-25

Required Action (CISA)

Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Risk Analysis

An out-of-bounds read vulnerability in Apple WebKit, affecting iOS, iPadOS, macOS, and Safari, may disclose sensitive information when processing malicious web content. This vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog, making it a critical security concern. The low EPSS score should not overshadow the confirmed exploitation.

This vulnerability is actively being exploited in the wild and is listed in CISA's KEV catalog. It is remotely exploitable by processing maliciously crafted web content.

Recommended Action

Apply the latest security updates for Apple iOS, iPadOS, macOS, and Safari. Ensure all applications utilizing WebKit are updated to mitigate this information disclosure risk.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-42916 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2023-42916 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.