CVE-2023-32423
Published: April 11, 2026
Official Description
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, Safari 16.5, iOS 16.5 and iPadOS 16.5. Processing web content may disclose sensitive information.
Technical Analysis
CVE-2023-32423 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-2023-32423 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.
Exploit & PoC Resources
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-32423 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1