SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-4993

CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting…

MEDIUM 6.1EPSS 2.55%

Does this matter?

Lower severity and a low EPSS score (2.55%). Track it; it rarely justifies an emergency change on its own.

Description

CRLF injection vulnerability in the Undertow web server in WildFly 10.0.0, as used in Red Hat JBoss Enterprise Application Platform (EAP) 7.x before 7.0.2, allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via unspecified vectors.

CVSS 3.0
6.1 MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
2.55% probability · 85th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-93, CWE-113
Affected
redhat/jboss enterprise application platform · redhat/jboss wildfly application server
Source
secalert@redhat.com
EPSS trend
0%3%5%26 October 2026: 2.55%26 October 202626 October 2026

EPSS 2.5% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.