CVE-2016-4655
Published: May 24, 2022
Official Description
The Apple iOS kernel allows attackers to obtain sensitive information from memory via a crafted application.
CISA KEV Advisory
Apple iOS Information Disclosure Vulnerability
The Apple iOS kernel allows attackers to obtain sensitive information from memory via a crafted application.
Apply updates per vendor instructions.
Risk Analysis
A vulnerability in the Apple iOS kernel allows attackers to extract sensitive information from memory using a specially crafted application. With an EPSS score of 0.82102, there is a very high likelihood of exploitation, and its inclusion in CISA's KEV catalog confirms active exploitation.
Active exploitation of this vulnerability has been observed in the wild, indicating a significant risk to iOS users. It is remotely exploitable.
Update Apple iOS devices to the latest available version to patch this information disclosure vulnerability. Ensure applications are only downloaded from trusted sources.
Technical Analysis
CVE-2016-4655 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-2016-4655 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.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2016-4655 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