CVE-2014-4078

The IP Security feature in Microsoft Internet Information Services (IIS) 8.0 and 8.5 does not properly process wildcard allow and deny rules for domains within the "IP Address and Domain Restrictions" list, which makes it easier for remote attackers to bypass an intended rule set via an HTTP request, aka "IIS Security Feature Bypass Vulnerability."

Published: 2014-11-11 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-4078 is rated Moderate Risk (50/100): CVSS Medium severity, with high exploitation likelihood (EPSS 10.44%, 93th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. 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-2014-4078

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 2026-05-09 13.45% 10.44% -3.01%
2 2026-03-04 18.94% 13.45% -5.49%
3 2026-03-01 — 18.94% —

Full EPSS history (45 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-4078

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.1 2.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 4.9 6.4 [email protected]

Weakness enumeration for CVE-2014-4078

Affected software / configurations for CVE-2014-4078

Vendor Product Version Raw CPE
microsoft internet_information_services 8.0 cpe:2.3:a:microsoft:internet_information_services:8.0:*:*:*:*:*:*:*
microsoft internet_information_services 8.5 cpe:2.3:a:microsoft:internet_information_services:8.5:*:*:*:*:*:*:*

References for CVE-2014-4078

cvelogic Threat Intelligence