{
  "crds_version": "0.1",
  "kind": "base",
  "id": "crds:cve-2020-16040",
  "revision": 1,
  "title": "Chrome — Heap Corruption in the JavaScript Engine",
  "summary": "Insufficient validation in Chrome's script engine lets a crafted page corrupt memory, the first step of the chain a browser exploit needs.",
  "source_type": "cve",
  "severity": "medium",
  "cvss": {
    "score": 6.5,
    "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
    "version": "3.1"
  },
  "epss": 0.99595,
  "exploitation": {
    "known_exploited": false,
    "exploit_available": true,
    "attack_complexity": "low",
    "prerequisites": "A user opens the crafted page"
  },
  "remediation": {
    "patch_available": true,
    "fixed_in": [
      "Chrome 87.0.4280.88"
    ]
  },
  "mitre_attack": [
    "T1203"
  ],
  "kill_chain": "execution",
  "recommended_action": "Upgrade Chrome past 87.0.4280.88, and let the browser update itself on managed fleets.",
  "confidence": "high",
  "provenance": [
    {
      "fields": [
        "cvss",
        "exploitation.attack_complexity",
        "exploitation.exploit_available",
        "references",
        "published_at"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2020-16040",
      "retrieved_at": "2026-08-07T17:02:45.847Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "epss"
      ],
      "source": "https://api.first.org/data/v1/epss?cve=CVE-2020-16040",
      "retrieved_at": "2026-08-07T17:02:45.847Z",
      "confidence": "high",
      "extractor": "scrty-crds-pipeline/0.1"
    },
    {
      "fields": [
        "title",
        "summary",
        "severity",
        "remediation",
        "mitre_attack",
        "kill_chain",
        "recommended_action",
        "confidence",
        "tags",
        "exploitation.prerequisites"
      ],
      "source": "https://nvd.nist.gov/vuln/detail/CVE-2020-16040",
      "retrieved_at": "2026-08-07T17:02:45.847Z",
      "confidence": "high",
      "extractor": "claude-code"
    }
  ],
  "references": [
    {
      "type": "cve",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-16040",
      "label": "NVD record"
    },
    {
      "type": "vendor_advisory",
      "url": "https://chromereleases.googleblog.com/2020/12/stable-channel-update-for-desktop.html"
    },
    {
      "type": "vendor_advisory",
      "url": "https://crbug.com/1150649"
    },
    {
      "type": "exploit",
      "url": "http://packetstormsecurity.com/files/162106/Google-Chrome-86.0.4240-V8-Remote-Code-Execution.html"
    },
    {
      "type": "exploit",
      "url": "http://packetstormsecurity.com/files/162144/Google-Chrome-SimplfiedLowering-Integer-Overflow.html"
    }
  ],
  "published_at": "2021-01-08T19:15:14.083Z",
  "issued_at": "2026-08-07T17:02:45.847Z",
  "tags": [
    "google-chrome",
    "browser",
    "memory-corruption"
  ]
}