Is CVE-2003-0809 in the CISA KEV catalog?

No. CVE-2003-0809 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2003-0809?

CVE-2003-0809 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2003-0809?

CVE-2003-0809 has an EPSS score of 26.67% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2003-0809

HIGHEPSS 98th pctl

7.5

CVSS v2

NVD

Description

Internet Explorer 5.01 through 6.0 does not properly handle object tags returned from a Web server during XML data binding, which allows remote attackers to execute arbitrary code via an HTML e-mail message or web page.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

26.67%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

http://www.osvdb.org/7887
http://www.securityfocus.com/bid/8565
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-040
https://exchange.xforce.ibmcloud.com/vulnerabilities/13300
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A123

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.