How severe is CVE-2018-5314?

CVE-2018-5314 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-5314 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5314?

CVE-2018-5314 primarily affects Citrix Netscaler Application Delivery Controller. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-5314?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-5314 published?

CVE-2018-5314 was published on 2018-03-01 and last updated on 2026-06-17.

CVE-2018-5314

CVE-2018-5314 is a high-severity vulnerability in Citrix Netscaler Application Delivery Controller with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Citrix Netscaler Application Delivery Controller
Published: 2018-03-01
Last modified: 2026-06-17

Description

Command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway 11.0 before build 70.16, 11.1 before build 55.13, and 12.0 before build 53.13; and the NetScaler Load Balancing instance distributed with NetScaler SD-WAN/CloudBridge 4000, 4100, 5000 and 5100 WAN Optimization Edition 9.3.0 allows remote attackers to execute a system command or read arbitrary files via an SSH login prompt.

Frequently asked questions

What is CVE-2018-5314?: Command injection vulnerability in Citrix NetScaler ADC and NetScaler Gateway 11.0 before build 70.16, 11.1 before build 55.13, and 12.0 before build 53.13; and the NetScaler Load Balancing instance distributed with NetScaler SD-WAN/CloudBridge 4000, 4100, 5000 and 5100 WAN Optimization Edition 9.3.0 allows remote attackers to execute a system command or read arbitrary files via an SSH login prompt.
How severe is CVE-2018-5314?: CVE-2018-5314 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-5314 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5314?: CVE-2018-5314 primarily affects Citrix Netscaler Application Delivery Controller. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-5314?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-5314 published?: CVE-2018-5314 was published on 2018-03-01 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:citrix:netscaler_application_delivery_controller:11.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:11.1:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler_application_delivery_controller:12.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:11.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:11.1:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler_gateway:12.0:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler_sd-wan:9.3.0:*:*:*:wan_optimization:*:*:*

More vulnerabilities in Citrix Netscaler Application Delivery Controller

CVE-2014-2882 — Critical (CVSS 10.0): Unspecified vulnerability in the management GUI in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler…
CVE-2014-2881 — Critical (CVSS 10.0): Unspecified vulnerability in the Diffie-Hellman key agreement implementation in the management GUI Java applet in…
CVE-2026-8655 — Critical (CVSS 9.8): Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous…
CVE-2026-8452 — Critical (CVSS 9.8): Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and…
CVE-2026-3055 — Critical (CVSS 9.8): Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading…
CVE-2025-7776 — Critical (CVSS 9.8): Memory overflow vulnerability leading to unpredictable or erroneous behavior and Denial of Service in NetScaler ADC…

All CVEs affecting Citrix Netscaler Application Delivery Controller →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-20317 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering…
CVE-2026-19977 — Critical (CVSS 10.0): A vulnerability was detected in EFM ipTIME A3004T 14.19.0. The affected element is the function…
CVE-2026-59500 — Critical (CVSS 10.0): CWE-287: Improper Authentication
CVE-2024-27253 — Critical (CVSS 10.0): IBM DOORS Next 7.0.3 through 7.0.3 Interim Fix 018 could allow an authenticated user to bypass security logic to…
CVE-2026-56162 — Critical (CVSS 10.0): Improper authentication in Azure SQL Database allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-62825 — Critical (CVSS 10.0): Improper authentication in Azure Key Vault allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-287 (Improper Authentication) vulnerabilities →