CVE-1999-1235

Status: ModifiedMedium (4.6)—💥 Exploit

Internet Explorer 5.0 records the username and password for FTP servers in the URL history, which could allow (1) local users to read the information from another user's index.dat, or (2) people who are physically observing ("shoulder surfing") another user to read the information from the status bar when the user moves the mouse over a link.

CVSS

Version: 2.0
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Base score: 4.6

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 2.71%
Percentile among all scored CVEs: 86
Score date: 10/10/2026

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).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Published on Exploit-DB · Microsoft Internet Explorer 5 - FTP Password Storage (8/25/1999)

Affected technologies (1)

Microsoft — Internet Explorer

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-1999-1235",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.6,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/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": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "1999-08-25T04:00:00.000",
  "references": [
    {
      "url": "http://ntbugtraq.ntadvice.com/default.asp?pid=36&sid=1&A2=ind9904&L=NTBUGTRAQ&P=R179",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://packetderm.cotse.com/mailing-lists/ntbugtraq/1999/0364.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/3289",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://ntbugtraq.ntadvice.com/default.asp?pid=36&sid=1&A2=ind9904&L=NTBUGTRAQ&P=R179",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://packetderm.cotse.com/mailing-lists/ntbugtraq/1999/0364.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/3289",
      "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": "Internet Explorer 5.0 records the username and password for FTP servers in the URL history, which could allow (1) local users to read the information from another user's index.dat, or (2) people who are physically observing (\"shoulder surfing\") another user to read the information from the status bar when the user moves the mouse over a link."
    }
  ],
  "lastModified": "2026-06-16T21:50:00.410",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:microsoft:internet_explorer:5.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E6B8985B-B927-4928-B1DB-18E29F796992"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}