{
    "id": "CVE-2003-1177",
    "published": "2003-12-31 05:00:00",
    "last_modified": "2026-06-16 22:03:39",
    "cvss_score": "7.5",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
    "cwe": null,
    "description": "Buffer overflow in the base64 decoder in MERCUR Mailserver 4.2 before SP3a allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long (1) AUTH command to the POP3 server or (2) AUTHENTICATE command to the IMAP server.",
    "epss_score": "0.12925",
    "epss_percentile": "0.96201",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-10-02 18:17:04",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "atrium_software",
            "product": "mercur_mailserver"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "23267",
            "title": "Atrium Software Mercur MailServer 3.3/4.0/4.2 - IMAP AUTH Remote Buffer Overflow",
            "date": "2003-10-20",
            "url": "https://www.exploit-db.com/exploits/23267"
        }
    ],
    "refs_list": [
        "http://archives.neohapsis.com/archives/fulldisclosure/2003-q4/1459.html",
        "http://secunia.com/advisories/10038",
        "http://www.atrium-software.com/mail%20server/pub/mcr42sp3a.html",
        "http://www.osvdb.org/2688",
        "http://www.securiteam.com/windowsntfocus/6U00N1P8KC.html",
        "http://www.securityfocus.com/bid/8861",
        "http://www.securityfocus.com/bid/8889",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/13468",
        "http://archives.neohapsis.com/archives/fulldisclosure/2003-q4/1459.html",
        "http://secunia.com/advisories/10038",
        "http://www.atrium-software.com/mail%20server/pub/mcr42sp3a.html",
        "http://www.osvdb.org/2688",
        "http://www.securiteam.com/windowsntfocus/6U00N1P8KC.html",
        "http://www.securityfocus.com/bid/8861",
        "http://www.securityfocus.com/bid/8889",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/13468"
    ]
}