{
  "fix": "htmldoc-common 1.9.2-1ubuntu0.2\u002Besm1",
  "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-htmldoc-common-1.9.2-1ubuntu0.2-esm1",
  "summary": "htmldoc-common 1.9.2-1ubuntu0.2\u002Besm1, released July 18, 2023, fixes 11 CVEs in htmldoc-common. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.",
  "platform": "linux",
  "type": "package",
  "title": "htmldoc-common 1.9.2-1ubuntu0.2\u002Besm1 for Ubuntu 18.04.6 LTS (bionic)",
  "released": "2023-07-18T07:15:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2021-23158, rated Critical",
  "supported": false,
  "cveCount": 11,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.07349,
  "maxCvss": 9.8,
  "appliesTo": [
    {
      "product": "htmldoc-common",
      "productUrl": "https://patchblox.com/security/product/linux/htmldoc-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.9.2-1ubuntu0.2\u002Besm1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-23158",
      "url": "https://patchblox.com/security/cve/CVE-2021-23158",
      "title": "htmldoc: A flaw was found in htmldoc in v1.9.12",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.02436,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-43579",
      "url": "https://patchblox.com/security/cve/CVE-2021-43579",
      "title": "htmldoc: A stack-based buffer overflow in image_load_bmp() in HTMLDOC \u003C= 1.9.13 results in remote code execution if the victim...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.07349,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23206",
      "url": "https://patchblox.com/security/cve/CVE-2021-23206",
      "title": "htmldoc: A flaw was found in htmldoc in v1.9.12 and prior",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.01481,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-26259",
      "url": "https://patchblox.com/security/cve/CVE-2021-26259",
      "title": "htmldoc: A flaw was found in htmldoc in v1.9.12",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.01215,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-23191",
      "url": "https://patchblox.com/security/cve/CVE-2021-23191",
      "title": "htmldoc: A security issue was found in htmldoc v1.9.12 and before",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.011,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-26252",
      "url": "https://patchblox.com/security/cve/CVE-2021-26252",
      "title": "htmldoc: A flaw was found in htmldoc in v1.9.12",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.00959,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-26948",
      "url": "https://patchblox.com/security/cve/CVE-2021-26948",
      "title": "htmldoc: Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.00839,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-34119",
      "url": "https://patchblox.com/security/cve/CVE-2021-34119",
      "title": "htmldoc: A flaw was discovered in htmodoc 1.9.12 in function parse_paragraph in ps-pdf.cxx ,this flaw possibly allows possible...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.00336,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-34121",
      "url": "https://patchblox.com/security/cve/CVE-2021-34121",
      "title": "htmldoc: An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to me...",
      "priority": "High",
      "severity": "high",
      "cvss": 7.8,
      "epss": 0.00336,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-20308",
      "url": "https://patchblox.com/security/cve/CVE-2021-20308",
      "title": "htmldoc: Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.02477,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-40985",
      "url": "https://patchblox.com/security/cve/CVE-2021-40985",
      "title": "htmldoc: A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted...",
      "priority": "Routine",
      "severity": "Medium",
      "epss": 0.00937,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-12T07:53:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}