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CVE-2014-0117

27
FAUCET Score

CVE-2014-0117 describes a denial-of-service vulnerability in the mod_proxy module of Apache HTTP Server versions 2.4.x before 2.4.10, affecting Apache and Apple products. An unauthenticated remote attacker can crash a child process by sending a specially crafted HTTP Connection header when reverse proxying is enabled. While the CVSS score is moderate (4.3), indicating partial availability impact, its FAUCET Risk Score of 96/100 suggests a higher practical risk. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.4.6CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*
2.4.7CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*
2.4.8CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:*
2.4.9CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*
<= 10.10.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
35.54%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.3554 is in the 99th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

apachepatch availablevia llm_extracted
Fixed in: 2.4
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: httpd-0:2.4.6-18.el7_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6Fixed in: httpd24-httpd-0:2.4.6-18.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 6.4 EUSFixed in: httpd24-httpd-0:2.4.6-18.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections 1 for Red Hat Enterprise Linux 7Fixed in: httpd24-httpd-0:2.4.6-21.el7
View patch

Vendor Advisories (4)

apachellm-apache-f398f8ed28802aa3LOW

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

Mar 2, 2026
apachellm-apache-a7a91ec4c0e9421dHIGH

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

Dec 10, 2025
redhatCVE-2014-0117Moderate

httpd: mod_proxy denial of service

Jul 17, 2014
apachellm-apache-684e4d0003611bd4LOW

Apache HTTP Server 2.4 vulnerabilities - The Apache HTTP Server Project

References

advisories.mageia.org / MGASA-2014-0305.html
httpd.apache.org / security/vulnerabilities_24.html
PatchVendor Advisory
lists.apple.com / archives/security-announce/2015/Apr/msg00001.html
bugzilla.redhat.com / show_bug.cgi
seclists.org / fulldisclosure/2014/Jul/117
lists.apache.org / thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r83109088737656fa6307bd99ab40f8ff0269ae58d3f7272d7048494a%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r9821b0a32a1d0a1b4947abb6f3630053fcbb2ec905d9a32c2bd4d4ee%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/ra7f6aeb28661fbf826969526585f16856abc4615877875f9d3b35ef4%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
support.apple.com / HT204659
svn.apache.org / viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c
svn.apache.org / viewvc/httpd/httpd/trunk/modules/proxy/mod_proxy_http.c
svn.apache.org / viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c
svn.apache.org / viewvc/httpd/httpd/trunk/modules/proxy/proxy_util.c
oracle.com / technetwork/topics/security/cpujan2015-1972971.html
zerodayinitiative.com / advisories/ZDI-14-239