What is the CVSS score of CVE-2017-14602?

CVE-2017-14602 has a CVSS 3.0 base score of 7.2 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Is there a patch available for CVE-2017-14602?

Yes, a patch is available for CVE-2017-14602. Update the affected software to the latest version immediately.

Netscaler Gateway Firmware CVE-2017-14602

HIGH

Improper Authentication (CWE-287)

2017-09-26 cve@mitre.org

Authentication Bypass Citrix Netscaler Gateway Firmware Application Delivery Controller Firmware

7.2

CVSS 3.0 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-287 OWASP Top 10:2025 A07:2025 - Authentication Failures ASVS 5.0 V6 - Authentication Authentication mechanism validation MITRE ATT&CK 2 techniques across 2 tactics: Defense Evasion, Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 7.2 (HIGH). Attack characteristics: network attack vector, low complexity, high privileges required, no user interaction not required. EPSS exploitation probability: 0.39%.
Exploit ScenarioDerived	A remote attacker could bypass authentication mechanisms to gain unauthorized access by sending crafted requests to the affected application.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 0.4% exploitation probability (EPSS)

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AnalysisAI

A vulnerability has been identified in the management interface of Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.1 before build 135.18, 10.5 before build 66.9, 10.5e. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. This Improper Authentication vulnerability could allow attackers to bypass authentication mechanisms to gain unauthorized access.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. A vulnerability has been identified in the management interface of Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.1 before build 135.18, 10.5 before build 66.9, 10.5e before build 60.7010.e, 11.0 before build 70.16, 11.1 before build 55.13, and 12.0 before build 53.13 (except for build 41.24) that, if exploited, could allow an attacker with access to the NetScaler management interface to gain administrative access to the appliance. Affected products include: Citrix Application Delivery Controller Firmware, Citrix Netscaler Gateway Firmware.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.2 HIGH

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

A vulnerability has been identified in the management interface of Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.1 before build 135.18, 10.5 before build 66.9, 10.5e before build 60.7010.e, 11.0 before build 70.16, 11.1 before build 55.13, and 12.0 before build 53.13 (except for build 41.24) that, if exploited, could allow an attacker with access to the NetScaler management interface to gain administrative access to the appliance.

Threat Intelligence Overview

EPSS Score

0.4%

Top 40% exploitable

Data Quality

3 sources

Confidence: Low

Citrix

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.4%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +36

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)CVE.org

cpe:2.3:o:citrix:application_delivery_controller_firmware:10.1:*:*:*:*:*:*:*

cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5:*:*:*:*:*:*:*

cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5e:*:*:*:*:*:*:*

cpe:2.3:o:citrix:application_delivery_controller_firmware:11.0:*:*:*:*:*:*:*

cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1:*:*:*:*:*:*:*

cpe:2.3:o:citrix:application_delivery_controller_firmware:12.0:*:*:*:*:*:*:*

cpe:2.3:o:citrix:netscaler_gateway_firmware:10.1:*:*:*:*:*:*:*

cpe:2.3:o:citrix:netscaler_gateway_firmware:10.5:*:*:*:*:*:*:*

cpe:2.3:o:citrix:netscaler_gateway_firmware:10.5e:*:*:*:*:*:*:*

cpe:2.3:o:citrix:netscaler_gateway_firmware:11.0:*:*:*:*:*:*:*

cpe:2.3:o:citrix:netscaler_gateway_firmware:11.1:*:*:*:*:*:*:*

cpe:2.3:o:citrix:netscaler_gateway_firmware:12.0:*:*:*:*:*:*:*

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References

Advisories & patches

PATCH https://support.citrix.com/article/CTX227928 REF http://www.securityfocus.com/bid/100980 REF https://support.citrix.com/article/CTX228091

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