{
  "cveId": "CVE-2021-43177",
  "url": "https://patchblox.com/security/cve/CVE-2021-43177",
  "summary": "CVE-2021-43177 is fixed in ruby-devise-two-factor on 1 platform, first by DEBIAN-CVE-2021-43177, released April 11, 2022. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "ruby-devise-two-factor: As a result of an incomplete fix for CVE-2015-7225, in versions of devise-two-factor prior to 4.0.2 it is possible to...",
  "description": "As a result of an incomplete fix for CVE-2015-7225, in versions of devise-two-factor prior to 4.0.2 it is possible to reuse a One-Time-Password (OTP) for one (and only one) immediately trailing interval. CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)",
  "published": "2022-04-11T13:15:00Z",
  "severity": "medium",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
  "epss": 0.00884,
  "epssPercentile": 0.59463,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "ruby-devise-two-factor",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "4.0.2-1",
      "fix": "DEBIAN-CVE-2021-43177",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-43177",
      "released": "2022-04-11T20:15:16Z"
    },
    {
      "platform": "linux",
      "product": "ruby-devise-two-factor",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.1.0-2ubuntu0.1~esm1",
      "fix": "ruby-devise-two-factor 3.1.0-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-ruby-devise-two-factor-3.1.0-2ubuntu0.1-esm1",
      "released": "2024-09-17T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "ruby-devise-two-factor",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.0.0-2ubuntu0.1~esm1",
      "fix": "ruby-devise-two-factor 4.0.0-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-ruby-devise-two-factor-4.0.0-2ubuntu0.1-esm1",
      "released": "2024-09-17T11:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}