{
    "dataType": "CVE_RECORD",
    "cveMetadata": {
        "cveId": "CVE-2026-42996",
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "state": "PUBLISHED",
        "assignerShortName": "mitre",
        "dateReserved": "2026-05-01T06:42:18.918Z",
        "datePublished": "2026-05-01T06:42:58.858Z",
        "dateUpdated": "2026-05-01T22:10:45.285Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "defaultStatus": "unknown",
                    "product": "JS8Call",
                    "vendor": "JS8Call",
                    "versions": [
                        {
                            "lessThanOrEqual": "2.3.1",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "defaultStatus": "unaffected",
                    "product": "JS8Call-improved",
                    "vendor": "JS8Call-improved",
                    "versions": [
                        {
                            "lessThan": "3.0",
                            "status": "affected",
                            "version": "0",
                            "versionType": "custom"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "JS8Call through 2.3.1 and JS8Call-improved before 3.0 have a stack-based buffer overflow via a radio transmission of @APRSIS GRID followed by a long Maidenhead locator. This occurs in grid2deg in APRSISClient.cpp."
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "YES",
                        "Recovery": "USER",
                        "Safety": "PRESENT",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "attackVector": "NETWORK",
                        "baseScore": 10,
                        "baseSeverity": "CRITICAL",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "GREEN",
                        "subAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "HIGH",
                        "subIntegrityImpact": "HIGH",
                        "userInteraction": "NONE",
                        "valueDensity": "DIFFUSE",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:D/RE:M/U:Green",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "HIGH",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnerabilityResponseEffort": "MODERATE"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-121",
                            "description": "CWE-121 Stack-based Buffer Overflow",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
                "shortName": "mitre",
                "dateUpdated": "2026-05-01T22:10:45.285Z"
            },
            "references": [
                {
                    "url": "https://github.com/JS8Call-improved/JS8Call-improved/security/advisories/GHSA-98hp-pjp7-w62x"
                },
                {
                    "url": "https://amateur-radio-resources.sourceforge.io/PDF/JS8APRS.pdf"
                },
                {
                    "url": "https://github.com/js8call/js8call/blob/fd721e8b67eed84cb3c09d018205ab9a53e1a8b1/APRSISClient.cpp#L89-L102"
                },
                {
                    "url": "https://github.com/JS8Call-improved/JS8Call-improved/commit/a6c7a19b82bbd7c2c0c892576f84d7449e8c7088"
                }
            ],
            "x_generator": {
                "engine": "CVE-Request-form 0.0.1"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/JS8Call-improved/JS8Call-improved/security/advisories/GHSA-98hp-pjp7-w62x",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-05-01T13:24:04.476930Z",
                                "id": "CVE-2026-42996",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-05-01T13:24:34.086Z"
                }
            }
        ]
    },
    "dataVersion": "5.2"
}