{
  "cveId": "CVE-2025-59391",
  "url": "https://patchblox.com/security/cve/CVE-2025-59391",
  "summary": "CVE-2025-59391 is fixed in 8 products on 1 platform, first by DEBIAN-CVE-2025-59391, released December 8, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libcoap3: A memory disclosure vulnerability exists in libcoap\u0027s OSCORE configuration parser in libcoap before release-4.3.5-pat...",
  "description": "A memory disclosure vulnerability exists in libcoap\u0027s OSCORE configuration parser in libcoap before release-4.3.5-patches. An out-of-bounds read may occur when parsing certain configuration values, allowing an attacker to infer or read memory beyond string boundaries in the .rodata section. This could potentially lead to information disclosure or denial of service.",
  "published": "2025-12-08T17:16:20Z",
  "severity": "medium",
  "cvss": 6.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
  "epss": 0.00279,
  "epssPercentile": 0.20504,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libcoap",
      "release": "Fedora 43",
      "fixedVersion": "4.3.5b-1.fc43",
      "fix": "FEDORA-2026-0CE923A09D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d",
      "released": "2026-04-17T10:02:36Z"
    },
    {
      "platform": "linux",
      "product": "libcoap-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "4.3.5b-1.fc43",
      "fix": "FEDORA-2026-0CE923A09D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d",
      "released": "2026-04-17T10:02:36Z"
    },
    {
      "platform": "linux",
      "product": "libcoap-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "4.3.5b-1.fc43",
      "fix": "FEDORA-2026-0CE923A09D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d",
      "released": "2026-04-17T10:02:36Z"
    },
    {
      "platform": "linux",
      "product": "libcoap-devel",
      "release": "Fedora 43",
      "fixedVersion": "4.3.5b-1.fc43",
      "fix": "FEDORA-2026-0CE923A09D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d",
      "released": "2026-04-17T10:02:36Z"
    },
    {
      "platform": "linux",
      "product": "libcoap-doc",
      "release": "Fedora 43",
      "fixedVersion": "4.3.5b-1.fc43",
      "fix": "FEDORA-2026-0CE923A09D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d",
      "released": "2026-04-17T10:02:36Z"
    },
    {
      "platform": "linux",
      "product": "libcoap-utils",
      "release": "Fedora 43",
      "fixedVersion": "4.3.5b-1.fc43",
      "fix": "FEDORA-2026-0CE923A09D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d",
      "released": "2026-04-17T10:02:36Z"
    },
    {
      "platform": "linux",
      "product": "libcoap-utils-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "4.3.5b-1.fc43",
      "fix": "FEDORA-2026-0CE923A09D",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-0ce923a09d",
      "released": "2026-04-17T10:02:36Z"
    },
    {
      "platform": "linux",
      "product": "libcoap3",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "4.3.4-1.1\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2025-59391",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-59391",
      "released": "2025-12-08T17:16:20Z"
    },
    {
      "platform": "linux",
      "product": "libcoap3",
      "release": "Debian 14",
      "fixedVersion": "4.3.5-2",
      "fix": "DEBIAN-CVE-2025-59391",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-59391",
      "released": "2025-12-08T17:16:20Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}