{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-28858", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2026-03-03T16:36:03.972Z", "datePublished": "2026-03-25T00:32:28.144Z", "dateUpdated": "2026-03-26T03:55:38.295Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "A remote user may be able to cause unexpected system termination or corrupt kernel memory"}]}], "affected": [{"vendor": "Apple", "product": "iOS and iPadOS", "versions": [{"version": "0", "status": "affected", "lessThan": "26.4", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote user may be able to cause unexpected system termination or corrupt kernel memory."}], "references": [{"url": "https://support.apple.com/en-us/126792"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-03-25T00:32:28.144Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-120", "lang": "en", "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-03-25T00:00:00+00:00", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3", "id": "CVE-2026-28858"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-03-26T03:55:38.295Z"}}]}}

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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"}], "analysis": {"en": {"generated_at": "2026-03-25T02:42:28.425185+00:00", "value": {"mitigation_remediation": ["Update all affected devices to iOS 26.4 or later"], "summary": {"action": "Patch Immediately", "impact": "Kernel memory corruption with potential for system termination"}, "threat_synthesis": {"affected_systems": "Apple iOS and iPadOS devices running any version prior to 26.4 are impacted. The issue is resolved in iOS 26.4 and iPadOS 26.4. Devices on earlier releases should consider upgrading to the latest OS as soon as possible.", "description_and_impact": "A buffer overflow exists in Apple iOS and iPadOS that bypasses bounds checking and may overwrite kernel memory. The vulnerability can allow a remote user to cause unexpected system termination or corrupt critical system data, leading to loss of integrity, possible service disruption, and exposing the device to further malicious exploitation.", "risk_and_exploitability": "The CVSS score is not provided, and the EPSS score is not available, but kernel memory corruption typically represents a high severity risk. Attackers can trigger the overflow remotely, likely through a crafted input to a vulnerable service or application. The absence of an explicit public exploit does not diminish the potential impact, and the vulnerability remains in the CISA KEV catalog as not listed."}}}}, "created": "2026-03-25T11:36:21.423429+00:00", "title": "Kernel Memory Corruption via Buffer Overflow in iOS/iPadOS", "updated": "2026-03-25T21:16:38.868692+00:00", "vendors": ["apple", "apple$PRODUCT$ios_and_ipados"], "weaknesses": ["CWE-787", "CWE-125"]}