CVE-2014-0117

The mod_proxy module in the Apache HTTP Server 2.4.x before 2.4.10, when a reverse proxy is enabled, allows remote attackers to cause a denial of service (child-process crash) via a crafted HTTP Connection header.

Published: 2014-07-20 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-0117 is rated Moderate Risk (56.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 57.00%, 98th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +27.66% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2014-0117

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-04 29.34% 57.00% +27.66%
2 2026-03-01 57.00% 29.34% -27.66%
3 2026-02-04 — 57.00% —

Full EPSS history (40 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-0117

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2014-0117

OS Trackers for CVE-2014-0117

vendor priority summary link
debian not yet assigned CVE-2014-0117 not yet assigned priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2014-0117
redhat medium — https://access.redhat.com/security/cve/CVE-2014-0117
suse medium CVE-2014-0117 severity moderate: SUSE including 88 source package names (apache2, apache2-2.4.10-6.1, …), 187 product×package rows across 35 product lines (HPE Helion OpenStack 8, SUSE Liberty Linux 7, … (35 product lines)): Fixed 100, Known Not Affected 87. https://www.suse.com/security/cve/CVE-2014-0117/
ubuntu medium CVE-2014-0117 medium priority: Ubuntu including 1 source packages (apache2), 4 status rows across 4 suites (lucid, precise, trusty, upstream): not-affected 2, released 2. https://ubuntu.com/security/CVE-2014-0117

NVD evaluator notes for CVE-2014-0117

Comment: Per vendor advisory http://httpd.apache.org/security/vulnerabilities_24.html "A flaw was found in mod_proxy in httpd versions 2.4.6 to 2.4.9."

Affected software / configurations for CVE-2014-0117

Vendor Product Version Raw CPE
apache http_server 2.4.6 cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
apache http_server 2.4.7 cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
apache http_server 2.4.8 cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:*
apache http_server 2.4.9 cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
apple mac_os_x <= 10.10.2 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

References for CVE-2014-0117

URL Tags
http://advisories.mageia.org/MGASA-2014-0305.html
http://httpd.apache.org/security/vulnerabilities_24.html Patch Vendor Advisory
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
http://seclists.org/fulldisclosure/2014/Jul/117
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c?r1=1599486&r2=1610674&diff_format=h
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c
http://svn.apache.org/viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c?r1=1609680&r2=1610674&diff_format=h
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
http://zerodayinitiative.com/advisories/ZDI-14-239/
https://bugzilla.redhat.com/show_bug.cgi?id=1120599
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9821b0a32a1d0a1b4947abb6f3630053fcbb2ec905d9a32c2bd4d4ee%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/ra7f6aeb28661fbf826969526585f16856abc4615877875f9d3b35ef4%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
https://support.apple.com/HT204659
cvelogic Threat Intelligence