CVE-2026-42443

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{"affected": [{"affectedData": [{"product": "NanaZip", "vendor": "M2Team", "versions": [{"status": "affected", "version": ">= 5.0.1250.0, < 6.0.1698.0"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:m2team:nanazip:*:*:*:*:*:*:*:*", "matchCriteriaId": "60D88926-2653-48FD-A4FE-B8CB8EB39E55", "versionEndExcluding": "6.0.1698.0", "versionStartIncluding": "5.0.1252.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, an integer divide-by-zero exists in the UFS/UFS2 filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted UFS image where the superblock field fs_ipg (inodes per cylinder group) is set to zero. The parser uses this attacker-controlled value as a divisor without validation, causing an immediate hardware trap and process crash. This vulnerability is fixed in 6.0.1698.0."}, {"lang": "es", "value": "NanaZip es un archivador de archivos de c\u00f3digo abierto. Desde la versi\u00f3n 5.0.1252.0 hasta antes de la 6.0.1698.0, existe una divisi\u00f3n por cero de enteros en el analizador de im\u00e1genes del sistema de archivos UFS/UFS2 en NanaZip. La vulnerabilidad se activa al abrir una imagen UFS manipulada donde el campo fs_ipg (inodos por grupo de cilindros) del superbloque est\u00e1 configurado a cero. El analizador utiliza este valor controlado por el atacante como divisor sin validaci\u00f3n, lo que provoca una interrupci\u00f3n de hardware inmediata y un fallo del proceso. Esta vulnerabilidad est\u00e1 corregida en la versi\u00f3n 6.0.1698.0."}], "id": "CVE-2026-42443", "lastModified": "2026-10-26T18:10:00.173", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-42443", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-12T19:43:56.716052Z", "version": "2.0.3"}}]}, "published": "2026-05-12T20:16:41.520", "references": [{"source": "security-advisories@github.com", "tags": ["Mitigation", "Vendor Advisory"], "url": "https://github.com/M2Team/NanaZip/security/advisories/GHSA-3x2h-gqqw-g3gm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-369"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.0.1250.0,6.0.1698.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "NanaZip", "source": "cna", "vendor": "M2Team"}, "product": "nanazip", "vendor": "m2team"}], "created": "2026-05-12T21:15:29.132767+00:00", "updated": "2026-05-13T00:00:16.083862+00:00", "vendors": ["m2team", "m2team$PRODUCT$nanazip"]}