CVE-2026-86314

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Walrus", "vendor": "Samsung Opensource", "versions": [{"status": "affected", "version": "ff3bf5ff5c4878f8e5572c9593d303f6bc997443"}]}], "source": "PSIRT@samsung.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Integer overflow in the source-bounds check in Memory::init() (src/runtime/Memory.cpp) in Samsung walrus on all platforms allows a remote attacker to cause an out-of-bounds heap read and denial of service via a crafted WebAssembly module in which a 32-bit unsigned addition wraps around and bypasses the bounds check.\n\n\n\nThis issue affects Walrus: ff3bf5ff5c4878f8e5572c9593d303f6bc997443."}, {"lang": "es", "value": "Desbordamiento de entero en la comprobaci\u00f3n de l\u00edmites de origen en Memory::init() (src/runtime/Memory.cpp) en Samsung walrus en todas las plataformas permite a un atacante remoto causar una lectura de mont\u00f3n fuera de l\u00edmites y denegaci\u00f3n de servicio a trav\u00e9s de un m\u00f3dulo WebAssembly manipulado en el que una suma sin signo de 32 bits se desborda y omite la comprobaci\u00f3n de l\u00edmites.\n\nEste problema afecta a Walrus: ff3bf5ff5c4878f8e5572c9593d303f6bc997443."}], "id": "CVE-2026-86314", "lastModified": "2026-09-28T23:10:00.143", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 3.6, "source": "PSIRT@samsung.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-86314", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-08T15:23:47.230905Z", "version": "2.0.3"}}]}, "published": "2026-09-07T03:17:19.530", "references": [{"source": "PSIRT@samsung.com", "url": "https://github.com/Samsung/walrus/pull/482"}], "sourceIdentifier": "PSIRT@samsung.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-190"}], "source": "PSIRT@samsung.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "ff3bf5ff5c4878f8e5572c9593d303f6bc997443"}}], "enrichment": {"confidence": 98.0, "confidence_source": "matching", "scores": [{"score": 98.0, "source": "matching"}]}, "original": {"product": "Walrus", "source": "cna", "vendor": "Samsung Opensource"}, "product": "walrus", "vendor": "samsung_open_source"}], "created": "2026-09-07T03:30:16.124136+00:00", "title": "Integer Overflow in Walrus Memory::init() Enables Out-of-Bounds Heap Read and Denial of Service", "updated": "2026-09-07T04:30:17.355971+00:00", "vendors": ["samsung_open_source", "samsung_open_source$PRODUCT$walrus"]}