{
    "id": "CVE-2025-52691",
    "published": "2025-12-29 03:15:42",
    "last_modified": "2026-06-17 09:36:54",
    "cvss_score": "10.0",
    "cvss_severity": "CRITICAL",
    "cvss_version": "3.1",
    "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
    "cwe": "CWE-434",
    "description": "Successful exploitation of the vulnerability could allow an unauthenticated attacker to upload arbitrary files to any location on the mail server, potentially enabling remote code execution.",
    "epss_score": "0.85655",
    "epss_percentile": "0.99719",
    "kev": 1,
    "kev_due": "2026-02-16",
    "has_exploit": 0,
    "updated_at": "2026-09-26 18:40:26",
    "priority": {
        "rank": 1,
        "label": "Patch first",
        "why": "On CISA KEV — known exploited in the wild, due 2026-02-16."
    },
    "products": [
        {
            "vendor": "smartertools",
            "product": "smartermail"
        }
    ],
    "kev_detail": {
        "cve_id": "CVE-2025-52691",
        "date_added": "2026-01-26",
        "due_date": "2026-02-16",
        "vendor": "SmarterTools",
        "product": "SmarterMail",
        "name": "SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability",
        "ransomware": 1
    },
    "exploits": [],
    "refs_list": [
        "https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2025-124/",
        "https://github.com/watchtowrlabs/watchTowr-vs-SmarterMail-CVE-2025-52691?ref=labs.watchtowr.com",
        "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-52691"
    ]
}