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CVE-2016-4656: Apple iOS Memory Corruption Vulnerability

criticalknown exploitedpublic exploitCVE-2016-4656
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.
A memory corruption vulnerability in Apple iOS kernel allows attackers to execute code in a privileged context or cause a denial-of-service (DoS) via a crafted application.

CSIRTS triage

vendor: Appleproduct: iOSMemory corruptionDenial of service
What
A memory corruption vulnerability allows attackers to execute code in a privileged context or cause a denial-of-service (DoS).
Who is affected
Users of Apple iOS with the affected kernel.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest version of iOS.

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

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-24
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2016-4656

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-2016-4656coverage & exploitation statusNVD · CVE.org

Recent advisories for Apple iOS Memory

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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