Is CVE-2014-0099 in the CISA KEV catalog?

No. CVE-2014-0099 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-0099?

CVE-2014-0099 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2014-0099?

CVE-2014-0099 has an EPSS score of 8.84% (95th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-0099?

Upgrade libtomcat7-java on ubuntu 14.04 to 7.0.52-1ubuntu0.1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2014-0099

MEDIUMEPSS 95th pctl

4.3

CVSS v2

NVD

Description

Integer overflow in java/org/apache/tomcat/util/buf/Ascii.java in Apache Tomcat before 6.0.40, 7.x before 7.0.53, and 8.x before 8.0.4, when operated behind a reverse proxy, allows remote attackers to conduct HTTP request smuggling attacks via a crafted Content-Length HTTP header.

CWE-189

How to fix

Remediation Available

libtomcat7-javaUbuntu

Fixed in:7.0.52-1ubuntu0.1USN-2302-1

tomcat7Ubuntu

Fixed in:7.0.52-1ubuntu0.1USN-2302-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

8.84%probability of exploitation in 30 days

95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-1538	High	10.0	99%	-	-
CVE-2006-3747	High	7.6	96%	-	Fix
CVE-2007-0071	High	9.3	93%	-	-
CVE-2015-3829	High	10.0	90%	-	-
CVE-2015-3864	High	10.0	87%	-	-
CVE-2015-1539	High	10.0	86%	-	-

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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 2026-05-06.