{"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":"2026-05-01T06:55:48.483Z"},"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":"2026-05-01T06:55:48.483Z"},"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"}],"x_generator":{"engine":"CVE-Request-form 0.0.1"}}},"dataVersion":"5.2"}