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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43623",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2026-05-01T18:22:45.640Z",
        "datePublished": "2026-06-01T18:04:14.379Z",
        "dateUpdated": "2026-07-14T20:01:08.235Z"
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                "dateUpdated": "2026-07-14T20:01:08.235Z"
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            "title": "microtar 0.1.0 Stack-Based Buffer Overflow via raw_to_header()",
            "descriptions": [
                {
                    "lang": "en",
                    "value": "microtar through 0.1.0 contains a stack-based buffer overflow vulnerability in the raw_to_header() function in src/microtar.c that allows attackers to corrupt adjacent stack memory by supplying a crafted TAR archive with non-null-terminated name or linkname fields. The function uses strcpy() to copy 100-byte ustar format fields that lack null terminators, causing writes of up to 355 bytes into a 100-byte destination buffer when mtar_open(), mtar_find(), or mtar_read_header() process attacker-supplied TAR archives."
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                "unsupported-when-assigned"
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            "datePublic": "2026-02-16T00:00:00.000Z",
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                    "descriptions": [
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                            "lang": "en",
                            "cweId": "CWE-121",
                            "description": "Stack-based Buffer Overflow",
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                    ]
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                    "packageURL": "pkg:github/rxi/microtar",
                    "vendor": "rxi",
                    "product": "microtar",
                    "repo": "https://github.com/rxi/microtar",
                    "versions": [
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                            "version": "0",
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                        "attackRequirements": "NONE",
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                        "userInteraction": "PASSIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "HIGH",
                        "subIntegrityImpact": "NONE",
                        "vulnAvailabilityImpact": "HIGH",
                        "subAvailabilityImpact": "NONE",
                        "exploitMaturity": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "valueDensity": "NOT_DEFINED",
                        "vulnerabilityResponseEffort": "NOT_DEFINED",
                        "providerUrgency": "NOT_DEFINED",
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                        "userInteraction": "REQUIRED",
                        "scope": "UNCHANGED",
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                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
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            ],
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                {
                    "url": "https://github.com/rxi/microtar/issues/28",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://github.com/rxi/microtar/issues/29",
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                    "url": "https://www.vulncheck.com/advisories/microtar-stack-based-buffer-overflow-via-raw-to-header",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Byambadalai Sumiya (@ByamB4)",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Saidakbarxon Maxsudxonov",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "mms (@3291710458)",
                    "type": "finder"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "x_generator": {
                "engine": "vulncheck"
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        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-02T15:38:38.723071Z",
                                "id": "CVE-2026-43623",
                                "options": [
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                                        "Exploitation": "poc"
                                    },
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                                        "Automatable": "no"
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                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
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                    "dateUpdated": "2026-06-02T15:38:50.155Z"
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