{
    "id": "CVE-2022-28805",
    "published": "2022-04-08 06:15:07",
    "last_modified": "2026-06-17 04:39:06",
    "cvss_score": "9.1",
    "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:N/A:H",
    "cwe": "CWE-125",
    "description": "singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.",
    "epss_score": "0.03000",
    "epss_percentile": "0.87009",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 0,
    "updated_at": "2026-10-11 18:17:29",
    "priority": {
        "rank": 3,
        "label": "In your normal cycle",
        "why": "Critical by CVSS (9.1), but no sign of active exploitation."
    },
    "products": [
        {
            "vendor": "fedoraproject",
            "product": "fedora"
        },
        {
            "vendor": "lua",
            "product": "lua"
        }
    ],
    "kev_detail": null,
    "exploits": [],
    "refs_list": [
        "https://github.com/lua/lua/commit/1f3c6f4534c6411313361697d98d1145a1f030fa",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/",
        "https://lua-users.org/lists/lua-l/2022-02/msg00001.html",
        "https://lua-users.org/lists/lua-l/2022-02/msg00070.html",
        "https://lua-users.org/lists/lua-l/2022-04/msg00009.html",
        "https://security.gentoo.org/glsa/202305-23",
        "https://github.com/lua/lua/commit/1f3c6f4534c6411313361697d98d1145a1f030fa",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/",
        "https://lua-users.org/lists/lua-l/2022-02/msg00001.html",
        "https://lua-users.org/lists/lua-l/2022-02/msg00070.html",
        "https://lua-users.org/lists/lua-l/2022-04/msg00009.html",
        "https://security.gentoo.org/glsa/202305-23"
    ]
}