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{"analysis": {"en": {"generated_at": "2026-04-28T02:38:35.809457+00:00", "value": {"mitigation_remediation": ["Apply the latest system update that includes iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, tvOS 18.4, visionOS 2.4, or watchOS 11.4.", "If an immediate update is not possible, prevent the installation or use of untrusted fonts by configuring device management or local security settings.", "Enable or enforce strict font validation policies through mobile device management to avoid processing maliciously crafted fonts."], "summary": {"action": "Patch", "impact": "Data Disclosure"}, "threat_synthesis": {"affected_systems": "Apple\u2019s iOS, iPadOS, macOS, tvOS, visionOS and watchOS are affected. The vulnerability is fixed in iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, tvOS 18.4, visionOS 2.4 and watchOS 11.4.", "description_and_impact": "An attacker can trigger an out\u2011of\u2011bounds read by supplying a malicious font, leading to the disclosure of process memory. The flaw is a classic input validation bug identified as CWE\u2011125. Because the data read is from memory, confidentiality is compromised while integrity is not directly affected.", "risk_and_exploitability": "The CVSS score is 5.5, indicating moderate risk, and the EPSS score of less than 1% suggests exploitation is unlikely at present. The vulnerability is not listed in CISA\u2019s KEV catalog. Attackers must deliver a crafted font that the operating system processes, which is most likely a local attack or one that requires a user to install an application containing the malicious font. The exploit path therefore requires local interaction or a privileged application that can load the font, and there is no publicly known remote exploitation method."}}}}, "created": "2026-04-28T02:45:11.081491+00:00", "title": "Out\u2011of\u2011Bounds Read in Font Processing Allows Process Memory Disclosure", "updated": "2026-04-28T02:45:11.081501+00:00", "vendors": []}