{
  "affected": [],
  "aliases": [
    "CVE-2025-12198"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-27T01:15:38Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability has been found in dnsmasq up to 2.73rc6. Affected is the function parse_hex of the file src/util.c of the component Config File Handler. The manipulation of the argument i leads to heap-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
  "id": "GHSA-cg5x-75cf-2mvp",
  "modified": "2025-11-01T21:30:25Z",
  "published": "2025-10-27T03:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12198"
    },
    {
      "type": "WEB",
      "url": "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2025q4/018337.html"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=45727137"
    },
    {
      "type": "WEB",
      "url": "https://shimo.im/docs/1d3aMVMmNmiLjg3g"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.329868"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.329868"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?submit.673138"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2025/10/27/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/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",
      "type": "CVSS_V4"
    }
  ]
}