CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2023-42917: Apple Multiple Products WebKit Memory Corruption Vulnerability

criticalknown exploitedCVE-2023-42917
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 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.

CSIRTS triage

vendor: AppleMemory corruption
What
A memory corruption vulnerability in WebKit can lead to code execution when processing malicious web content.
Who is affected
Users of Apple iOS, iPadOS, macOS, and Safari are affected by this vulnerability.
Urgency
Immediate remediation is necessary due to active exploitation and critical severity.
Action
Apply the latest updates for 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-2023-42917

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-2023-42917coverage & exploitation statusNVD · CVE.org

More from CISA Known Exploited Vulnerabilities