{
  "id": "CVE-2018-4878",
  "url": "https://spydr.io/cve/CVE-2018-4878",
  "published": "2018-02-06T21:29:00.347Z",
  "modified": "2026-06-17T01:59:12.397Z",
  "score": 7.8,
  "severity": "high",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.89532,
  "epss_percentile": 0.99785,
  "exploited": true,
  "kev": {
    "added": "2021-11-03",
    "due": "2022-05-03",
    "action": "The impacted product is end-of-life and should be disconnected if still in use.",
    "ransomware": "Known",
    "name": "Adobe Flash Player Use-After-Free Vulnerability",
    "notes": "https://nvd.nist.gov/vuln/detail/CVE-2018-4878"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "adobe",
    "redhat"
  ],
  "products": [
    "Adobe Flash Player before 28.0.0.161"
  ],
  "cwes": [
    "CWE-416"
  ],
  "description": "A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player handling of listener objects. A successful attack can lead to arbitrary code execution. This was exploited in the wild in January and February 2018.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 7.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "http://blog.talosintelligence.com/2018/02/group-123-goes-wild.html",
      "tags": [
        "Technical Description",
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.securityfocus.com/bid/102893",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://www.securitytracker.com/id/1040318",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://access.redhat.com/errata/RHSA-2018:0285",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://blog.morphisec.com/flash-exploit-cve-2018-4878-spotted-in-the-wild-massive-malspam-campaign",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/InQuest/malware-samples/tree/master/CVE-2018-4878-Adobe-Flash-DRM-UAF-0day",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/vysec/CVE-2018-4878",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://helpx.adobe.com/security/products/flash-player/apsb18-03.html",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://securingtomorrow.mcafee.com/mcafee-labs/hackers-bypassed-adobe-flash-protection-mechanism/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://threatpost.com/adobe-flash-player-zero-day-spotted-in-the-wild/129742/",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.darkreading.com/threat-intelligence/adobe-flash-vulnerability-reappears-in-malicious-word-files/d/d-id/1331139",
      "tags": [
        "Press/Media Coverage",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.exploit-db.com/exploits/44412/",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ]
    },
    {
      "url": "https://www.fireeye.com/blog/threat-research/2018/02/attacks-leveraging-adobe-zero-day.html",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.trendmicro.com/vinfo/us/security/news/vulnerabilities-and-exploits/north-korean-hackers-allegedly-exploit-adobe-flash-player-vulnerability-cve-2018-4878-against-south-korean-targets",
      "tags": [
        "Technical Description",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/cisagov/vulnrichment/issues/196",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4878",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2018-4878",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}