CVE-2007-3164

Status: ModifiedMedium (5.8)—

Microsoft Internet Explorer 7, when prompting for HTTP Basic Authentication for an IDN web site, uses ACE labels for the domain name in the status bar, but uses internationalized labels for this name in the authentication dialog, which might allow remote attackers to perform phishing attacks if the user misinterprets confusable characters in the internationalized labels, as demonstrated by displaying xn--theshmogroup-bgk.com only in the status bar.

CVSS

Version: 2.0
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N
Base score: 5.8

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 9.85%
Percentile among all scored CVEs: 95
Score date: 10/9/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Microsoft — Internet Explorer

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2007-3164",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2007-06-11T22:30:00.000",
  "references": [
    {
      "url": "http://ha.ckers.org/blog/20070608/cross-domain-basic-auth-phishing-tactics/",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/36142",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://secunia.com/advisories/25663",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.bitsploit.de/archives/428-Cross-Domain-Basic-Auth-Phishing-Tactics.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/24483",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/34867",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://ha.ckers.org/blog/20070608/cross-domain-basic-auth-phishing-tactics/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://osvdb.org/36142",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://secunia.com/advisories/25663",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.bitsploit.de/archives/428-Cross-Domain-Basic-Auth-Phishing-Tactics.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/24483",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/34867",
      "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": "Microsoft Internet Explorer 7, when prompting for HTTP Basic Authentication for an IDN web site, uses ACE labels for the domain name in the status bar, but uses internationalized labels for this name in the authentication dialog, which might allow remote attackers to perform phishing attacks if the user misinterprets confusable characters in the internationalized labels, as demonstrated by displaying xn--theshmogroup-bgk.com only in the status bar."
    },
    {
      "lang": "es",
      "value": "Microsoft Internet Explorer 7, cuando se avisa a HTTP Basic Authentication para un sitio web IDN, utiliza etiquetas ACE para el nombre de dominio en la barra de estado, pero utiliza etiquetas internacionalizadas para este nombre en diálogo de validación, lo cual podría permitir a un atacante remoto realizar ataques de phishing si el usuario malinterpreta caracteres confusos en las etiquetas internacionales, como se demostró exhibiendo xn--theshmogroup-bgk.com solo en la barra de estado."
    }
  ],
  "lastModified": "2026-06-16T22:41:11.617",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:internet_explorer:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6BC71FD8-D385-4507-BD14-B75FDD4C79E6"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}