{
  "cveId": "CVE-2021-28235",
  "url": "https://patchblox.com/security/cve/CVE-2021-28235",
  "summary": "CVE-2021-28235 is fixed in 4 products on 1 platform, first by etcd 3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2, released April 4, 2023. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "etcd: Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug f...",
  "description": "Authentication vulnerability found in Etcd-io v.3.4.10 allows remote attackers to escalate privileges via the debug function.",
  "published": "2023-04-04T08:15:00Z",
  "severity": "critical",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.01618,
  "epssPercentile": 0.76209,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "etcd",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "3.4.30-1",
      "fix": "DEBIAN-CVE-2021-28235",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-28235",
      "released": "2023-04-04T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "etcd",
      "release": "Debian 14",
      "fixedVersion": "3.4.30-1",
      "fix": "DEBIAN-CVE-2021-28235",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-28235",
      "released": "2023-04-04T15:15:08Z"
    },
    {
      "platform": "linux",
      "product": "etcd",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "fix": "etcd 3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-etcd-3.2.17-dfsg-1ubuntu0.1-esm2",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "fix": "etcd 3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-etcd-3.2.26-dfsg-6ubuntu0.2-esm1",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "fix": "etcd 3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-etcd-3.3.25-dfsg-7ubuntu0.22.04.1-esm1",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "3.5.12-bp156.4.3.1",
      "fix": "OPENSUSE-SU-2025:0003-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2025-0003-1",
      "released": "2025-01-07T15:04:12Z"
    },
    {
      "platform": "linux",
      "product": "etcd-client",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "fix": "etcd-client 3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-etcd-client-3.2.17-dfsg-1ubuntu0.1-esm2",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd-client",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "fix": "etcd-client 3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-etcd-client-3.2.26-dfsg-6ubuntu0.2-esm1",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd-client",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "fix": "etcd-client 3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-etcd-client-3.3.25-dfsg-7ubuntu0.22.04.1-esm1",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd-server",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "fix": "etcd-server 3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-etcd-server-3.2.17-dfsg-1ubuntu0.1-esm2",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd-server",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "fix": "etcd-server 3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-etcd-server-3.2.26-dfsg-6ubuntu0.2-esm1",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "etcd-server",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "fix": "etcd-server 3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-etcd-server-3.3.25-dfsg-7ubuntu0.22.04.1-esm1",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-etcd-server-dev",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "fix": "golang-etcd-server-dev 3.2.17\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-golang-etcd-server-dev-3.2.17-dfsg-1ubuntu0.1-esm2",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-etcd-server-dev",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "fix": "golang-etcd-server-dev 3.2.26\u002Bdfsg-6ubuntu0.2\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-golang-etcd-server-dev-3.2.26-dfsg-6ubuntu0.2-esm1",
      "released": "2023-04-04T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "golang-etcd-server-dev",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "fix": "golang-etcd-server-dev 3.3.25\u002Bdfsg-7ubuntu0.22.04.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-golang-etcd-server-dev-3.3.25-dfsg-7ubuntu0.22.04.1-esm1",
      "released": "2023-04-04T08:15:00Z"
    }
  ],
  "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"
  }
}