CVE-2026-122992

{
  "etk_id": "ETK-2026-3578",
  "cve_id": "CVE-2026-122992",
  "display_id": "CVE-2026-122992",
  "ghsa_id": "GHSA-qj3v-fq33-546m",
  "euvd_id": "EUVD-2026-117270",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Integer underflow in DStarGateway callsign conversion",
  "summary": "G4KLX and F4FXL DStarGateway revisions before commit 7b75de6 are affected by an integer underflow in callsign conversion. An attacker able to supply or cause processing of an RS-MS1A message with an empty sender field may trigger the flaw.",
  "mitigation": "Update DStarGateway to commit 7b75de6 or a later release that includes it. Until updated, restrict acceptance of untrusted RS-MS1A traffic and reject messages with empty sender fields.",
  "vendor": "G4KLX",
  "product": "DStarGateway",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= bd3b8650c41d3537c2af1d2d32dcb5b9f2a1a754, < 7b75de605dca542a2953dd74c16f0eac96a8944e"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "7b75de605dca542a2953dd74c16f0eac96a8944e"
      ],
      "package_name": "DStarGateway",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 9.2,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 59.8660142,
  "t0_at": "2026-11-05T02:36:35.657000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-11-05T02:36:35.657000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-05T02:36:35.657000+00:00",
      "url": "https://github.com/advisories/GHSA-qj3v-fq33-546m"
    }
  }
}