Is CVE-2004-2434 in the CISA KEV catalog?

No. CVE-2004-2434 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-2434?

CVE-2004-2434 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2004-2434?

CVE-2004-2434 has an EPSS score of 32.76% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2004-2434

MEDIUMEPSS 98th pctl

5.0

CVSS v2

NVD

Description

Microsoft Internet Explorer 6.0 SP1 allows remote attackers to cause a denial of service (browser crash) via a link with "::{" (colon colon left brace), which triggers a null dereference when the user attempts to save the link using "Save As" and Internet Explorer prepares an error message with an attacker-controlled format string.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

32.76%probability of exploitation in 30 days

98thpercentile

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

References

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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.