Use‑After‑Free in Apple WebKit (CVE‑2022‑22620) Enables Remote Code Execution on iOS, iPadOS, macOS
What It Is – Apple’s WebKit rendering engine in iOS, iPadOS and macOS contains a use‑after‑free flaw that can be triggered by malicious web content, allowing an attacker to execute arbitrary code in the context of the browser.
Exploitability – Publicly disclosed; proof‑of‑concept code exists and the vulnerability is rated high‑severity (CVSS ≈ 8.8). No known active exploit‑as‑a‑service, but the attack surface is broad because WebKit underpins Safari and any third‑party app that embeds it.
Affected Products – Apple iOS 15+, iPadOS 15+, macOS 12+ (WebKit component). Non‑Apple browsers that embed WebKit are also at risk.
Why It Matters for Trust & Control Assurance
- Demonstrates the need for continuous patch‑management monitoring – evidence that devices are running the latest, vendor‑signed releases is a core control across SOC 2, ISO 27001, NIST CSF and many others.
- Highlights the secure‑development lifecycle control objective: timely identification, assessment, and remediation of critical code‑execution flaws.
- Provides a concrete audit‑ready artifact (patch‑status logs) that can be presented to regulators or enterprise buyers demanding defensible security posture.
Recommended Actions
- Deploy Apple’s security update that addresses CVE‑2022‑22620 across all managed iOS, iPadOS and macOS devices immediately.
- Verify remediation through automated inventory tools and capture evidence of patch compliance.
- Map the remediation activity to your organization’s “Vulnerability Management” control objective and retain the evidence in a centralized Trust Center.
Source: CISA KEV – CVE‑2022‑22620