{
  "cveId": "CVE-2026-40013",
  "url": "https://patchblox.com/security/cve/CVE-2026-40013",
  "summary": "CVE-2026-40013 is fixed in 11 products on 1 platform, first by SUSE-SU-2026:23595-1, released September 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "dovecot: An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes...",
  "description": "An attacker that has valid credentials can submit a Sieve script containing an extreme numeric literal, which causes an out-of-bounds write when the ManageSieve service compiles the script. This causes memory corruption and an observed crash of the ManageSieve process, resulting in denial of service for script management. This might be able to be used for remote code execution. Disable the ManageSieve service if users do not need remote Sieve script management. Update to non-vulnerable version. No publicly available exploits are known.",
  "published": "2026-08-28T12:16:28Z",
  "severity": "medium",
  "cvss": 4.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
  "epss": 0.00868,
  "epssPercentile": 0.58989,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "dovecot",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:2.3.19.1\u002Bdfsg1-2.1\u002Bdeb12u7",
      "fix": "DEBIAN-CVE-2026-40013",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-40013",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "dovecot",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:2.4.1\u002Bdfsg1-6\u002Bdeb13u7",
      "fix": "DEBIAN-CVE-2026-40013",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-40013",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "dovecot",
      "release": "Debian 14",
      "fixedVersion": "1:2.4.5\u002Bdfsg1-1",
      "fix": "DEBIAN-CVE-2026-40013",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-40013",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "dovecot",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-devel",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-mysql",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-mysql-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-pgsql",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-pgsql-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-pigeonhole",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot-pigeonhole-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1:2.4.5-1.fc43",
      "fix": "FEDORA-2026-E8A6485109",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-e8a6485109",
      "released": "2026-09-10T05:35:17Z"
    },
    {
      "platform": "linux",
      "product": "dovecot24",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.4.4-160000.2.1",
      "fix": "OPENSUSE-SU-2026:21720-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21720-1",
      "released": "2026-09-01T14:18:02Z"
    },
    {
      "platform": "linux",
      "product": "dovecot24",
      "release": "sles 16.0",
      "fixedVersion": "2.4.4-160000.2.1",
      "fix": "SUSE-SU-2026:23595-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23595-1",
      "released": "2026-09-01T14:12:16Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T13:31:49Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}