Is CVE-2013-3373 in the CISA KEV catalog?

No. CVE-2013-3373 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-3373?

CVE-2013-3373 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2013-3373?

CVE-2013-3373 has an EPSS score of 2.43% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-3373?

Upgrade request-tracker4 on debian 11 to 4.0.12-2 or later.

CVE & CISA-KEV Catalog

CVE-2013-3373

MEDIUMEPSS 82th pctl

5.0

CVSS v2

NVD

Description

CRLF injection vulnerability in Request Tracker (RT) 3.8.x before 3.8.17 and 4.0.x before 4.0.13 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a MIME header.

CWE-94Code Injection

How to fix

Remediation Available

request-tracker4Debian

Fixed in:4.0.12-2CVE-2013-3373

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

2.43%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Patch3

Vendor Advisory2

Other references2

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

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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 2026-04-29.