{
  "fix": "RHSA-2021:1734",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2021-1734",
  "summary": "RHSA-2021:1734, released May 18, 2021, fixes 7 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 5 packages",
  "released": "2021-05-18T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2020-14372, high severity",
  "supported": true,
  "cveCount": 7,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01738,
  "maxCvss": 8.2,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2021:1734",
  "appliesTo": [
    {
      "product": "shim-aa64",
      "productUrl": "https://patchblox.com/security/product/linux/shim-aa64",
      "release": "RHEL 8",
      "fixedVersion": "0:15.4-2.el8_1",
      "supported": true
    },
    {
      "product": "shim-ia32",
      "productUrl": "https://patchblox.com/security/product/linux/shim-ia32",
      "release": "RHEL 8",
      "fixedVersion": "0:15.4-2.el8_1",
      "supported": true
    },
    {
      "product": "shim-unsigned-aarch64",
      "productUrl": "https://patchblox.com/security/product/linux/shim-unsigned-aarch64",
      "release": "RHEL 8",
      "fixedVersion": "0:15-7.el8_1",
      "supported": true
    },
    {
      "product": "shim-unsigned-x64",
      "productUrl": "https://patchblox.com/security/product/linux/shim-unsigned-x64",
      "release": "RHEL 8",
      "fixedVersion": "0:15.4-4.el8_1",
      "supported": true
    },
    {
      "product": "shim-x64",
      "productUrl": "https://patchblox.com/security/product/linux/shim-x64",
      "release": "RHEL 8",
      "fixedVersion": "0:15.4-2.el8_1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-14372",
      "url": "https://patchblox.com/security/cve/CVE-2020-14372",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.5,
      "epss": 0.01738,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-25632",
      "url": "https://patchblox.com/security/cve/CVE-2020-25632",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.2,
      "epss": 0.01152,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-20225",
      "url": "https://patchblox.com/security/cve/CVE-2021-20225",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.5,
      "epss": 0.01009,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-25647",
      "url": "https://patchblox.com/security/cve/CVE-2020-25647",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.6,
      "epss": 0.00794,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-20233",
      "url": "https://patchblox.com/security/cve/CVE-2021-20233",
      "title": "grub2-efi-aa64: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 8.2,
      "epss": 0.00605,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-27749",
      "url": "https://patchblox.com/security/cve/CVE-2020-27749",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.5,
      "epss": 0.00573,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2020-27779",
      "url": "https://patchblox.com/security/cve/CVE-2020-27779",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 7.5,
      "epss": 0.0039,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}