Is CVE-2007-2291 in the CISA KEV catalog?

No. CVE-2007-2291 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2007-2291?

CVE-2007-2291 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2007-2291?

CVE-2007-2291 has an EPSS score of 20.13% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2007-2291

HIGHEPSS 97th pctl

7.5

CVSS v2

NVD

Description

CRLF injection vulnerability in the Digest Authentication support for Microsoft Internet Explorer 7.0.5730.11 allows remote attackers to conduct HTTP response splitting attacks via a LF (%0a) in the username attribute.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

20.13%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

http://securityreason.com/securityalert/2654
http://www.securityfocus.com/archive/1/466906/100/0/threaded
http://www.securityfocus.com/bid/23668
http://www.securitytracker.com/id?1017969
http://www.wisec.it/vulns.php?id=11
https://exchange.xforce.ibmcloud.com/vulnerabilities/33978

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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.