{
  "cveId": "CVE-2025-15536",
  "url": "https://patchblox.com/security/cve/CVE-2025-15536",
  "summary": "CVE-2025-15536 is fixed in 12 products on 1 platform, first by libopencc-data 1.1.3\u002Bds1-3ubuntu3.1, released January 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "opencc: A weakness has been identified in BYVoid OpenCC up to 1.1.9",
  "description": "A weakness has been identified in BYVoid OpenCC up to 1.1.9. This vulnerability affects the function opencc::MaxMatchSegmentation of the file src/MaxMatchSegmentation.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. Patch name: 345c9a50ab07018f1b4439776bad78a0d40778ec. To fix this issue, it is recommended to deploy a patch.",
  "published": "2026-01-18T01:15:00Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00252,
  "epssPercentile": 0.16793,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libopencc-data",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.1.3\u002Bds1-3ubuntu3.1",
      "fix": "libopencc-data 1.1.3\u002Bds1-3ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libopencc-data-1.1.3-ds1-3ubuntu3.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc-data",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.1.7\u002Bds1-1ubuntu0.1",
      "fix": "libopencc-data 1.1.7\u002Bds1-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libopencc-data-1.1.7-ds1-1ubuntu0.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc-data",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.1.9\u002Bds1-2ubuntu0.1",
      "fix": "libopencc-data 1.1.9\u002Bds1-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libopencc-data-1.1.9-ds1-2ubuntu0.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc1.1",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.1.3\u002Bds1-3ubuntu3.1",
      "fix": "libopencc1.1 1.1.3\u002Bds1-3ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libopencc1.1-1.1.3-ds1-3ubuntu3.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc1.1",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.1.7\u002Bds1-1ubuntu0.1",
      "fix": "libopencc1.1 1.1.7\u002Bds1-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libopencc1.1-1.1.7-ds1-1ubuntu0.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc1.1",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.1.9\u002Bds1-2ubuntu0.1",
      "fix": "libopencc1.1 1.1.9\u002Bds1-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-libopencc1.1-1.1.9-ds1-2ubuntu0.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc2",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.4-5ubuntu0.1~esm1",
      "fix": "libopencc2 1.0.4-5ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libopencc2-1.0.4-5ubuntu0.1-esm1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc2",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.0.5\u002Bgit20190530-1ubuntu0.1~esm1",
      "fix": "libopencc2 1.0.5\u002Bgit20190530-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libopencc2-1.0.5-git20190530-1ubuntu0.1-esm1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc2-data",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.4-5ubuntu0.1~esm1",
      "fix": "libopencc2-data 1.0.4-5ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libopencc2-data-1.0.4-5ubuntu0.1-esm1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libopencc2-data",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.0.5\u002Bgit20190530-1ubuntu0.1~esm1",
      "fix": "libopencc2-data 1.0.5\u002Bgit20190530-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libopencc2-data-1.0.5-git20190530-1ubuntu0.1-esm1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.1.9\u002Bds1-1\u002Bdeb13u1",
      "fix": "DEBIAN-CVE-2025-15536",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-15536",
      "released": "2026-01-18T09:15:46Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Debian 14",
      "fixedVersion": "1.1.9\u002Bds1-4",
      "fix": "DEBIAN-CVE-2025-15536",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-15536",
      "released": "2026-01-18T09:15:46Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Fedora 43",
      "fixedVersion": "1.1.9-5.fc43",
      "fix": "FEDORA-2026-B627CD8944",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-b627cd8944",
      "released": "2026-01-23T08:10:57Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.0.4-5ubuntu0.1~esm1",
      "fix": "opencc 1.0.4-5ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-opencc-1.0.4-5ubuntu0.1-esm1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.0.5\u002Bgit20190530-1ubuntu0.1~esm1",
      "fix": "opencc 1.0.5\u002Bgit20190530-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-opencc-1.0.5-git20190530-1ubuntu0.1-esm1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.1.3\u002Bds1-3ubuntu3.1",
      "fix": "opencc 1.1.3\u002Bds1-3ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-opencc-1.1.3-ds1-3ubuntu3.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.1.7\u002Bds1-1ubuntu0.1",
      "fix": "opencc 1.1.7\u002Bds1-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-opencc-1.1.7-ds1-1ubuntu0.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "opencc",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.1.9\u002Bds1-2ubuntu0.1",
      "fix": "opencc 1.1.9\u002Bds1-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-opencc-1.1.9-ds1-2ubuntu0.1",
      "released": "2026-01-18T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "opencc-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.1.9-5.fc43",
      "fix": "FEDORA-2026-B627CD8944",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-b627cd8944",
      "released": "2026-01-23T08:10:57Z"
    },
    {
      "platform": "linux",
      "product": "opencc-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.1.9-5.fc43",
      "fix": "FEDORA-2026-B627CD8944",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-b627cd8944",
      "released": "2026-01-23T08:10:57Z"
    },
    {
      "platform": "linux",
      "product": "opencc-devel",
      "release": "Fedora 43",
      "fixedVersion": "1.1.9-5.fc43",
      "fix": "FEDORA-2026-B627CD8944",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-b627cd8944",
      "released": "2026-01-23T08:10:57Z"
    },
    {
      "platform": "linux",
      "product": "opencc-doc",
      "release": "Fedora 43",
      "fixedVersion": "1.1.9-5.fc43",
      "fix": "FEDORA-2026-B627CD8944",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-b627cd8944",
      "released": "2026-01-23T08:10:57Z"
    },
    {
      "platform": "linux",
      "product": "opencc-tools",
      "release": "Fedora 43",
      "fixedVersion": "1.1.9-5.fc43",
      "fix": "FEDORA-2026-B627CD8944",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-b627cd8944",
      "released": "2026-01-23T08:10:57Z"
    },
    {
      "platform": "linux",
      "product": "opencc-tools-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.1.9-5.fc43",
      "fix": "FEDORA-2026-B627CD8944",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-b627cd8944",
      "released": "2026-01-23T08:10:57Z"
    },
    {
      "platform": "linux",
      "product": "python3-opencc",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.1.9\u002Bds1-2ubuntu0.1",
      "fix": "python3-opencc 1.1.9\u002Bds1-2ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-python3-opencc-1.1.9-ds1-2ubuntu0.1",
      "released": "2026-01-18T01:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}