Is CVE-2008-1544 in the CISA KEV catalog?

No. CVE-2008-1544 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2008-1544?

CVE-2008-1544 has a CVSS v2 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2008-1544?

CVE-2008-1544 has an EPSS score of 26.32% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2008-1544

HIGHEPSS 98th pctl

7.1

CVSS v2

NVD

Description

The setRequestHeader method of the XMLHttpRequest object in Microsoft Internet Explorer 5.01, 6, and 7 does not block dangerous HTTP request headers when certain 8-bit character sequences are appended to a header name, which allows remote attackers to (1) conduct HTTP request splitting and HTTP request smuggling attacks via an incorrect Content-Length header, (2) access arbitrary virtual hosts via a modified Host header, (3) bypass referrer restrictions via an incorrect Referer header, and (4) bypass the same-origin policy and obtain sensitive information via a crafted request header.

CWE-20Improper Input Validation

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

26.32%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 2026-04-23.