{
    "dataType": "CVE_RECORD",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2025-70100",
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "dateUpdated": "2026-06-29T19:34:44.347Z",
        "dateReserved": "2026-01-09T00:00:00.000Z",
        "datePublished": "2026-06-03T00:00:00.000Z"
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                "dateUpdated": "2026-06-03T13:51:17.592Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A divide-by-zero vulnerability in the ext4_block_set_lb_size function in src/ext4_blockdev.c of the lwext4 1.0.0 library allows attackers to cause a denial of service by providing a malformed ext4 filesystem image that results in a zero logical block size. The vulnerability is triggered during mount or image processing and leads to a Floating-Point Exception (FPE) under sanitizers or a runtime crash in standard builds due to missing validation of lb_size."
                }
            ],
            "affected": [
                {
                    "vendor": "n/a",
                    "product": "n/a",
                    "versions": [
                        {
                            "version": "n/a",
                            "status": "affected"
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            ],
            "references": [
                {
                    "url": "https://github.com/gkostka/lwext4/issues/90"
                },
                {
                    "url": "https://github.com/sigdevel/pocs/blob/main/res/lwext4/2/sig8_2_lwext4_ext4_blockdev_c_127"
                },
                {
                    "url": "https://infosec.exchange/@sigdevel/116668952003072580"
                }
            ],
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                            "description": "n/a"
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        },
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                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-369",
                                "lang": "en",
                                "description": "CWE-369 Divide By Zero"
                            }
                        ]
                    }
                ],
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                        "url": "https://github.com/gkostka/lwext4/issues/90",
                        "tags": [
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                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "REQUIRED",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-03T17:33:43.633264Z",
                                "id": "CVE-2025-70100",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
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                                        "Technical Impact": "partial"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                ],
                "title": "CISA ADP Vulnrichment",
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                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-03T17:34:25.964Z"
                }
            },
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "http://www.openwall.com/lists/oss-security/2026/06/29/5"
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