Is CVE-2009-2668 being actively exploited?

CVE-2009-2668 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-2668?

CVE-2009-2668 has a CVSS 2.0 base score of 7.8 (HIGH).

CVE-2009-2668

HIGH · CVSS 7.8EPSS 14.5%EU EUVD

Microsoft Internet Explorer 6 through 6.0.2900.2180 and 7 through 7.0.6000.16473 allows remote attackers to cause a denial of service (CPU consumption) via an XML document composed of a long series of start-tags with no corresponding end-tags, a related issue to CVE-2009-1232.

Key facts

CVSS score: 7.8 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-399
EPSS score: 14.5% (97th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-2661)
Published: August 5, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-2661 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / internet explorer
microsoft / internet explorer

References

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

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