Is CVE-2004-1166 in the CISA KEV catalog?

No. CVE-2004-1166 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-1166?

CVE-2004-1166 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2004-1166?

CVE-2004-1166 has an EPSS score of 39.16% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2004-1166

HIGHEPSS 98th pctl

7.5

CVSS v2

NVD

Description

CRLF injection vulnerability in Microsoft Internet Explorer 6.0.2800.1106 and earlier allows remote attackers to execute arbitrary FTP commands via an ftp:// URL that contains a URL-encoded newline ("%0a") before the FTP command, which causes the commands to be inserted into the resulting FTP session, as demonstrated using a PORT command.

CWE-94Code Injection

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

39.16%probability of exploitation in 30 days

98thpercentile

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

References

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.