{
    "id": "CVE-2009-0133",
    "published": "2009-01-15 17:30:00",
    "last_modified": "2026-06-16 23:04:19",
    "cvss_score": "10.0",
    "cvss_severity": "HIGH",
    "cvss_version": "2.0",
    "cvss_vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
    "cwe": "CWE-119",
    "description": "Buffer overflow in Microsoft HTML Help Workshop 4.74 and earlier allows context-dependent attackers to execute arbitrary code via a .hhp file with a long \"Index file\" field, possibly a related issue to CVE-2006-0564.",
    "epss_score": "0.67049",
    "epss_percentile": "0.99277",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-26 18:16:27",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "microsoft",
            "product": "html_help_workshop"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "16631",
            "title": "Microsoft HTML Help Workshop 4.74 - '.hhp' Index Buffer Overflow (Metasploit) (3)",
            "date": "2010-09-25",
            "url": "https://www.exploit-db.com/exploits/16631"
        },
        {
            "source": "exploit-db",
            "ref_id": "10321",
            "title": "Microsoft HTML Help Workshop 4.74 - '.hhp' Local Buffer Overflow (1)",
            "date": "2009-12-05",
            "url": "https://www.exploit-db.com/exploits/10321"
        },
        {
            "source": "exploit-db",
            "ref_id": "7727",
            "title": "Microsoft HTML Workshop 4.74 - Universal Buffer Overflow",
            "date": "2009-01-12",
            "url": "https://www.exploit-db.com/exploits/7727"
        },
        {
            "source": "exploit-db",
            "ref_id": "1495",
            "title": "Microsoft HTML Help Workshop - '.hhp' Local Buffer Overflow (3)",
            "date": "2006-02-14",
            "url": "https://www.exploit-db.com/exploits/1495"
        },
        {
            "source": "exploit-db",
            "ref_id": "1490",
            "title": "Microsoft HTML Help Workshop - '.hhp' Local Buffer Overflow (2)",
            "date": "2006-02-11",
            "url": "https://www.exploit-db.com/exploits/1490"
        },
        {
            "source": "exploit-db",
            "ref_id": "1488",
            "title": "Microsoft HTML Help Workshop - '.hhp' Denial of Service",
            "date": "2006-02-10",
            "url": "https://www.exploit-db.com/exploits/1488"
        },
        {
            "source": "exploit-db",
            "ref_id": "1470",
            "title": "Microsoft HTML Help Workshop - '.hhp' Local Buffer Overflow (1)",
            "date": "2006-02-06",
            "url": "https://www.exploit-db.com/exploits/1470"
        }
    ],
    "refs_list": [
        "http://securityreason.com/securityalert/4914",
        "https://www.exploit-db.com/exploits/7727",
        "http://securityreason.com/securityalert/4914",
        "https://www.exploit-db.com/exploits/7727"
    ]
}