Is CVE-2008-4340 being actively exploited?

CVE-2008-4340 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2008-4340?

CVE-2008-4340 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2008-4340

MEDIUM · CVSS 4.3EPSS 4.2%EU EUVD

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.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-20
EPSS score: 4.2% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2008-4321)
Published: September 30, 2008
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2008-4321 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

google / chrome
google / chrome

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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