{
    "id": "CVE-2012-3456",
    "published": "2012-08-20 18:55:03",
    "last_modified": "2026-06-16 23:43:15",
    "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": "CWE-119",
    "description": "Heap-based buffer overflow in the read function in filters/words/msword-odf/wv2/src/styles.cpp in the Microsoft import filter in Calligra 2.4.3 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted ODF style in an ODF document.  NOTE: this is the same vulnerability as CVE-2012-3455, but it was SPLIT by the CNA even though Calligra and KOffice share the same codebase.",
    "epss_score": "0.20073",
    "epss_percentile": "0.97374",
    "kev": 0,
    "kev_due": null,
    "has_exploit": 1,
    "updated_at": "2026-09-30 18:17:10",
    "priority": {
        "rank": 2,
        "label": "Patch early",
        "why": "A public exploit exists."
    },
    "products": [
        {
            "vendor": "calligra",
            "product": "calligra"
        }
    ],
    "kev_detail": null,
    "exploits": [
        {
            "source": "exploit-db",
            "ref_id": "37576",
            "title": "Alligra Calligra - Heap Buffer Overflow",
            "date": "2012-08-07",
            "url": "https://www.exploit-db.com/exploits/37576"
        }
    ],
    "refs_list": [
        "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00026.html",
        "http://marc.info/?l=bugtraq&m=136733075705494&w=2",
        "http://media.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdf",
        "http://secunia.com/advisories/50050",
        "http://www.kde.org/info/security/advisory-20120810-1.txt",
        "http://www.openwall.com/lists/oss-security/2012/08/04/1",
        "http://www.openwall.com/lists/oss-security/2012/08/04/5",
        "http://www.openwall.com/lists/oss-security/2012/08/06/1",
        "http://www.openwall.com/lists/oss-security/2012/08/06/6",
        "http://www.openwall.com/lists/oss-security/2012/08/10/1",
        "http://www.securityfocus.com/bid/54816",
        "http://www.ubuntu.com/usn/USN-1525-1",
        "https://exchange.xforce.ibmcloud.com/vulnerabilities/77482",
        "http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00026.html",
        "http://marc.info/?l=bugtraq&m=136733075705494&w=2",
        "http://media.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdf",
        "http://secunia.com/advisories/50050",
        "http://www.kde.org/info/security/advisory-20120810-1.txt",
        "http://www.openwall.com/lists/oss-security/2012/08/04/1",
        "http://www.openwall.com/lists/oss-security/2012/08/04/5",
        "http://www.openwall.com/lists/oss-security/2012/08/06/1",
        "http://www.openwall.com/lists/oss-security/2012/08/06/6",
        "http://www.openwall.com/lists/oss-security/2012/08/10/1",
        "http://www.securityfocus.com/bid/54816",
        "http://www.ubuntu.com/usn/USN-1525-1"
    ]
}