{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "JS8Call"
              },
              {
                "fixed": "2.3.1"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "fd721e8b67eed84cb3c09d018205ab9a53e1a8b1"
            },
            {
              "fixed": "a6c7a19b82bbd7c2c0c892576f84d7449e8c7088"
            }
          ],
          "repo": "https://github.com/js8call-improved/js8call-improved",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-98hp-pjp7-w62x"
  ],
  "database_specific": {
    "cna_assigner": "mitre",
    "cwe_ids": [
      "CWE-121"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42996.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "3.0"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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.",
  "id": "CVE-2026-42996",
  "modified": "2026-07-15T01:48:56.001421940Z",
  "published": "2026-05-01T06:42:58.858Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://amateur-radio-resources.sourceforge.io/PDF/JS8APRS.pdf"
    },
    {
      "type": "WEB",
      "url": "https://github.com/js8call/js8call/blob/fd721e8b67eed84cb3c09d018205ab9a53e1a8b1/APRSISClient.cpp#L89-L102"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42996.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/JS8Call-improved/JS8Call-improved/security/advisories/GHSA-98hp-pjp7-w62x"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42996"
    },
    {
      "type": "FIX",
      "url": "https://github.com/JS8Call-improved/JS8Call-improved/commit/a6c7a19b82bbd7c2c0c892576f84d7449e8c7088"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}