CVE-2008-4340

Status: ModifiedMedium (4.3)—Exploit

Severity4.3Medium · CVSS 2.0

Exploitation probability4.21 %higher than 91% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitAvailablePublished on Exploit-DB

Google Chrome 0.2.149.29 and 0.2.149.30 allows remote attackers to cause a denial of service (memory consumption) via an HTML document containing a carriage return ("\r\n\r\n") argument to the window.open function.

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: 4.21 %
Percentile among all scored CVEs: 91
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.

Published on Exploit-DB · Google Chrome - Carriage Return Null Object Memory Exhaustion (9/24/2008)

Affected technologies (1)

Google — Chrome

CWEs

CWE-20

References

Show 12 references

Raw JSON (NVD)

Show

{
  "id": "CVE-2008-4340",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "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,
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        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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      "affectedData": [
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              "version": "n/a"
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  "published": "2008-09-30T17:22:09.460",
  "references": [
    {
      "url": "http://secniche.org/gcrds.html",
      "source": "cve@mitre.org"
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      "url": "http://securityreason.com/securityalert/4339",
      "source": "cve@mitre.org"
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      "url": "http://www.securityfocus.com/archive/1/496688/100/0/threaded",
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      "url": "http://www.securityfocus.com/bid/31375",
      "source": "cve@mitre.org"
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      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/45403",
      "source": "cve@mitre.org"
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    {
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/45403",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "url": "https://www.exploit-db.com/exploits/6554",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Google Chrome 0.2.149.29 and 0.2.149.30 allows remote attackers to cause a denial of service (memory consumption) via an HTML document containing a carriage return (\"\\r\\n\\r\\n\") argument to the window.open function."
    },
    {
      "lang": "es",
      "value": "Google Chrome 0.2.149.29 y 0.2.149.30, permite a atacantes remotos provocar una denegación de servicio (consumo de memoria) a través de un documento HTML que contiene un argumento de retorno de carro  en la función window.open."
    }
  ],
  "lastModified": "2026-06-16T22:57:38.060",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:google:chrome:0.2.149.29:*:*:*:*:*:*:*",
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            },
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              "matchCriteriaId": "D73576CF-76EE-42A3-9955-D7991384B8C1"
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          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}