{
    "id": "CVE-2020-8165",
    "published": "2020-06-19 18:15:11",
    "last_modified": "2026-06-17 03:25:58",
    "cvss_score": "9.8",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
    "cwe": "CWE-502",
    "description": "A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, rails < 6.0.3.1 that can allow an attacker to unmarshal user-provided objects in MemCacheStore and RedisCacheStore potentially resulting in an RCE.",
    "epss_score": "0.45732",
    "epss_percentile": "0.98764",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-02 18:17:28",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "EPSS 45.7% — above the 10% action threshold."
    },
    "products": [
        {
            "vendor": "debian",
            "product": "debian_linux"
        },
        {
            "vendor": "opensuse",
            "product": "leap"
        },
        {
            "vendor": "rubyonrails",
            "product": "rails"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.html",
        "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.html",
        "https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1c",
        "https://hackerone.com/reports/413388",
        "https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html",
        "https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html",
        "https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-released/",
        "https://www.debian.org/security/2020/dsa-4766",
        "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.html",
        "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.html",
        "https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1c",
        "https://hackerone.com/reports/413388",
        "https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html",
        "https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html",
        "https://security.netapp.com/advisory/ntap-20250509-0002/",
        "https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-released/",
        "https://www.debian.org/security/2020/dsa-4766"
    ]
}