CVE-2026-20698

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "iOS and iPadOS", "source": "cna", "vendor": "Apple"}, "product": "ios_and_ipados", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "macOS", "source": "cna", "vendor": "Apple"}, "product": "macos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "tvOS", "source": "cna", "vendor": "Apple"}, "product": "tvos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "visionOS", "source": "cna", "vendor": "Apple"}, "product": "visionos", "vendor": "apple"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,26.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "watchOS", "source": "cna", "vendor": "Apple"}, "product": "watchos", "vendor": "apple"}], "analysis": {"en": {"generated_at": "2026-03-26T21:49:15.446057+00:00", "value": {"mitigation_remediation": ["Update the device operating system to version 26.4 or later for iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. If an update is not immediately available, monitor Apple support advisories for further guidance."], "summary": {"action": "Apply update", "impact": "Kernel corruption or system crash"}, "threat_synthesis": {"affected_systems": "The flaw affects Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS. Versions prior to 26.4 are vulnerable, while iOS\u202f26.4, iPadOS\u202f26.4, macOS\u202fTahoe\u202f26.4, tvOS\u202f26.4, visionOS\u202f26.4 and watchOS\u202f26.4 include the fix.", "description_and_impact": "An application can trigger a memory handling flaw that may lead to unexpected system termination or corruption of kernel memory. The vulnerability is a buffer overflow described by CWE\u2011119 and CWE\u2011787, which allows overwriting memory regions and potentially corrupting critical system structures. This can cause the device to crash or exhibit unstable behavior, impacting availability and integrity of the operating system.", "risk_and_exploitability": "The CVSS score of 5.5 indicates a medium severity. With an EPSS score of less than 1\u202f% and no listing in KEV, the likelihood of exploitation is currently low, but the impact if exploited is significant. Based on the description, a malicious or compromised application could exploit the flaw locally to corrupt kernel memory or force a system crash."}}}}, "created": "2026-03-25T11:36:47.721418+00:00", "updated": "2026-03-27T09:20:06.470935+00:00", "vendors": ["apple", "apple$PRODUCT$ios_and_ipados", "apple$PRODUCT$macos", "apple$PRODUCT$tvos", "apple$PRODUCT$visionos", "apple$PRODUCT$watchos"]}