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CVE-2023-43000: Apple Multiple products Use-After-Free Vulnerability

criticalknown exploitedCVE-2023-43000
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 macOS, iOS, iPadOS, and Safari 16.6 contain a use-after-free vulnerability due to the processing of maliciously crafted web content that may lead to memory corruption.

CSIRTS triage

vendor: AppleMemory corruption
What
The vulnerability may lead to memory corruption due to a use-after-free condition in processing web content.
Who is affected
Users of Apple macOS, iOS, iPadOS, and Safari 16.6 are affected.
Urgency
Remediation is critical as the vulnerability is actively exploited and poses significant risks.
Action
Update all affected Apple products to the latest versions.

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

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-03-05
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-43000

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-2023-43000coverage & exploitation statusNVD · CVE.org

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