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CVE-2008-6995

Status: ModifiedMedium (4.3)—Exploit
Severity4.3Medium · CVSS 2.0
Exploitation probability4.80 %higher than 92% of CVEs
Active exploitationNonot in the CISA catalog
Public exploitAvailablePublished on Exploit-DB

Integer underflow in net/base/escape.cc in chrome.dll in Google Chrome 0.2.149.27 allows remote attackers to cause a denial of service (browser crash) via a URI with an invalid handler followed by a "%" (percent) character, which triggers a buffer over-read, as demonstrated using an "about:%" URI.

CVSS

Base score
4.3
Version
2.0
Vector
AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days
4.80 %
Percentile among all scored CVEs
92
Score date
10/21/2026

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.

Affected technologies (1)

Google — Chrome

CWEs

References

Show 18 references

Raw JSON (NVD)

Show
{
  "id": "CVE-2008-6995",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "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": "2009-08-19T05:24:52.717",
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2008-09/0028.html",
      "tags": [
        "Exploit"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=122",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://evilfingers.com/advisory/google_chrome_poc.php",
      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://osvdb.org/47908",
      "tags": [
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      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://src.chromium.org/viewvc/chrome/branches/chrome_official_branch/src/net/base/escape.cc?r1=1757&r2=1760&pathrev=1760",
      "tags": [
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    },
    {
      "url": "http://www.securityfocus.com/bid/30983",
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      "source": "cve@mitre.org"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/44899",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.evilfingers.com/advisory/Google_Chrome_Browser_0.2.149.27_in_chrome_dll.php",
      "tags": [
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    },
    {
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      "source": "cve@mitre.org"
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    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2008-09/0028.html",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://code.google.com/p/chromium/issues/detail?id=122",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://evilfingers.com/advisory/google_chrome_poc.php",
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      "tags": [
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    },
    {
      "url": "http://src.chromium.org/viewvc/chrome/branches/chrome_official_branch/src/net/base/escape.cc?r1=1757&r2=1760&pathrev=1760",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/30983",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/44899",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.evilfingers.com/advisory/Google_Chrome_Browser_0.2.149.27_in_chrome_dll.php",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.exploit-db.com/exploits/6353",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer underflow in net/base/escape.cc in chrome.dll in Google Chrome 0.2.149.27 allows remote attackers to cause a denial of service (browser crash) via a URI with an invalid handler followed by a \"%\" (percent) character, which triggers a buffer over-read, as demonstrated using an \"about:%\" URI."
    },
    {
      "lang": "es",
      "value": "Desbordamiento inferior de entero en net/base/escape.cc en chrome.dll en Google Chrome v0.2.149.27 pemite a atacantes remotos causar una denegación de servicio (caída buscador) a través de un URI con un manejador no válido seguido de un carácter \"%\" (tanto por cierto), que provoca una sobre-lectura del buffer, como se ha demostrado usando una URI \"about:%\".\r\n"
    }
  ],
  "lastModified": "2026-06-16T23:03:23.303",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:0.2.149.27:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D55D5075-D233-42D6-B1D6-77B7599650EB"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}