{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-21126",
        "assignerOrgId": "3af57064-a867-422c-b2ad-40307b65c458",
        "state": "PUBLISHED",
        "assignerShortName": "SamsungMobile",
        "dateReserved": "2025-12-11T01:33:35.832Z",
        "datePublished": "2026-10-12T04:57:42.847Z",
        "dateUpdated": "2026-10-12T04:57:42.847Z"
    },
    "containers": {
        "cna": {
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-20: Improper Input Validation"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "Samsung Mobile",
                    "product": "Samsung Mobile Devices",
                    "versions": [
                        {
                            "status": "unaffected",
                            "version": "SMR Oct-2026 Release in Android 14, 15, 16, 17",
                            "versionType": "semver",
                            "lessThan": "*"
                        }
                    ],
                    "defaultStatus": "affected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Improper input validation in getting cover image in libsimba.heifdec.media.samsung.so prior to SMR Oct-2026 Release 1 allows local attackers to write out-of-bounds memory."
                }
            ],
            "references": [
                {
                    "url": "https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=10"
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV4_0": {
                        "version": "4.0",
                        "attackVector": "LOCAL",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 6.9,
                        "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "providerMetadata": {
                "orgId": "3af57064-a867-422c-b2ad-40307b65c458",
                "shortName": "SamsungMobile",
                "dateUpdated": "2026-10-12T04:57:42.847Z"
            }
        }
    }
}