CVE-2007-1997

Estado: ModificadaAlta (7.5)—
Integer signedness error in the (1) cab_unstore and (2) cab_extract functions in libclamav/cab.c in Clam AntiVirus (ClamAV) before 0.90.2 allow remote attackers to execute arbitrary code via a crafted CHM file that contains a negative integer, which passes a signed comparison and leads to a stack-based buffer overflow.
CVSS

Versión: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Puntuación base: 7.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 5.41%
Percentil entre todas las CVEs puntuadas: 92
Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)

Clam Anti-virus — Clamav
CWE

NVD-CWE-Other
Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2007-1997",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": true,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-04-16T21:19:00.000",
  "references": [
    {
      "url": "http://docs.info.apple.com/article.html?artnum=307562",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=513",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/24891",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/24920",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/24946",
      "source": "cve@mitre.org"
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    {
      "url": "http://secunia.com/advisories/24996",
      "source": "cve@mitre.org"
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    {
      "url": "http://secunia.com/advisories/25022",
      "source": "cve@mitre.org"
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    {
      "url": "http://secunia.com/advisories/25028",
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    {
      "url": "http://secunia.com/advisories/25189",
      "source": "cve@mitre.org"
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    {
      "url": "http://secunia.com/advisories/29420",
      "source": "cve@mitre.org"
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    {
      "url": "http://security.gentoo.org/glsa/glsa-200704-21.xml",
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1281",
      "source": "cve@mitre.org"
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    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:098",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.novell.com/linux/security/advisories/2007_26_clamav.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/23473",
      "tags": [
        "Patch"
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      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id?1017921",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.trustix.org/errata/2007/0013/",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/1378",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/0924/references",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/33637",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://docs.info.apple.com/article.html?artnum=307562",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=513",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
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        "Vendor Advisory"
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    },
    {
      "url": "http://secunia.com/advisories/24920",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/24946",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/24996",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25022",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25028",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25189",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/29420",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-200704-21.xml",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://sourceforge.net/project/shownotes.php?release_id=500765",
      "tags": [
        "Patch"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.novell.com/techcenter/psdb/50a5cb718f20761dd7e0b6b4e0935c52.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2007/dsa-1281",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2007:098",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.novell.com/linux/security/advisories/2007_26_clamav.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/23473",
      "tags": [
        "Patch"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id?1017921",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.trustix.org/errata/2007/0013/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2007/1378",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.vupen.com/english/advisories/2008/0924/references",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/33637",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer signedness error in the (1) cab_unstore and (2) cab_extract functions in libclamav/cab.c in Clam AntiVirus (ClamAV) before 0.90.2 allow remote attackers to execute arbitrary code via a crafted CHM file that contains a negative integer, which passes a signed comparison and leads to a stack-based buffer overflow."
    },
    {
      "lang": "es",
      "value": "Error de presencia de signo en entero en las funciones (1) cab_unstore y (2) cab_extract en libclamav/cab.c de Clam AntiVirus (ClamAV) anterior a 0.90.2 permite a atacantes remotos ejecutar código de su elección mediante un archivo CHM manipulado que contiene un entero negativo, que pasa una comparación con signo y lleva a un desbordamiento de búfer basado en pila."
    }
  ],
  "lastModified": "2026-06-16T22:38:42.973",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:clam_anti-virus:clamav:0.90:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "142588F8-15C3-4288-BE7C-B2F7447BD60F"
            },
            {
              "criteria": "cpe:2.3:a:clam_anti-virus:clamav:0.90.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EC18418B-7477-436C-A24A-081701968DEF"
            },
            {
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              "vulnerable": true,
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            },
            {
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            },
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}