{
    "id": "CVE-2018-4878",
    "published": "2018-02-06 21:29:00",
    "last_modified": "2026-06-17 01:59:12",
    "cvss_score": "7.8",
    "cvss_severity": "HIGH",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
    "cwe": "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.",
    "epss_score": "0.89532",
    "epss_percentile": "0.99783",
    "kev": 1,
    "kev_due": "2022-05-03",
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:22:24",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2022-05-03."
    },
    "products": [
        {
            "vendor": "adobe",
            "product": "flash_player"
        },
        {
            "vendor": "apple",
            "product": "macos"
        },
        {
            "vendor": "google",
            "product": "chrome_os"
        },
        {
            "vendor": "linux",
            "product": "linux_kernel"
        },
        {
            "vendor": "microsoft",
            "product": "windows"
        },
        {
            "vendor": "microsoft",
            "product": "windows_10"
        },
        {
            "vendor": "microsoft",
            "product": "windows_8.1"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_desktop"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_server"
        },
        {
            "vendor": "redhat",
            "product": "enterprise_linux_workstation"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2018-4878",
        "date_added": "2021-11-03",
        "due_date": "2022-05-03",
        "vendor": "Adobe",
        "product": "Flash Player",
        "name": "Adobe Flash Player Use-After-Free Vulnerability",
        "ransomware": 1
    },
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "44412",
            "title": "Adobe Flash < 28.0.0.161 - Use-After-Free",
            "date": "2018-04-06",
            "url": "https://www.exploit-db.com/exploits/44412"
        },
        {
            "source": "exploit-db",
            "ref_id": "44744",
            "title": "Flash ActiveX 28.0.0.137 - Code Execution (1)",
            "date": "2016-02-16",
            "url": "https://www.exploit-db.com/exploits/44744"
        },
        {
            "source": "exploit-db",
            "ref_id": "44745",
            "title": "Flash ActiveX 28.0.0.137 - Code Execution (2)",
            "date": "2016-02-13",
            "url": "https://www.exploit-db.com/exploits/44745"
        }
    ],
    "refs_list": [
        "http://blog.talosintelligence.com/2018/02/group-123-goes-wild.html",
        "http://www.securityfocus.com/bid/102893",
        "http://www.securitytracker.com/id/1040318",
        "https://access.redhat.com/errata/RHSA-2018:0285",
        "https://blog.morphisec.com/flash-exploit-cve-2018-4878-spotted-in-the-wild-massive-malspam-campaign",
        "https://github.com/InQuest/malware-samples/tree/master/CVE-2018-4878-Adobe-Flash-DRM-UAF-0day",
        "https://github.com/vysec/CVE-2018-4878",
        "https://helpx.adobe.com/security/products/flash-player/apsb18-03.html",
        "https://securingtomorrow.mcafee.com/mcafee-labs/hackers-bypassed-adobe-flash-protection-mechanism/",
        "https://threatpost.com/adobe-flash-player-zero-day-spotted-in-the-wild/129742/",
        "https://www.darkreading.com/threat-intelligence/adobe-flash-vulnerability-reappears-in-malicious-word-files/d/d-id/1331139",
        "https://www.exploit-db.com/exploits/44412/",
        "https://www.fireeye.com/blog/threat-research/2018/02/attacks-leveraging-adobe-zero-day.html",
        "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",
        "http://blog.talosintelligence.com/2018/02/group-123-goes-wild.html",
        "http://www.securityfocus.com/bid/102893",
        "http://www.securitytracker.com/id/1040318",
        "https://access.redhat.com/errata/RHSA-2018:0285",
        "https://blog.morphisec.com/flash-exploit-cve-2018-4878-spotted-in-the-wild-massive-malspam-campaign",
        "https://github.com/InQuest/malware-samples/tree/master/CVE-2018-4878-Adobe-Flash-DRM-UAF-0day",
        "https://github.com/vysec/CVE-2018-4878",
        "https://helpx.adobe.com/security/products/flash-player/apsb18-03.html",
        "https://securingtomorrow.mcafee.com/mcafee-labs/hackers-bypassed-adobe-flash-protection-mechanism/",
        "https://threatpost.com/adobe-flash-player-zero-day-spotted-in-the-wild/129742/",
        "https://www.darkreading.com/threat-intelligence/adobe-flash-vulnerability-reappears-in-malicious-word-files/d/d-id/1331139"
    ]
}