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% (85th 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% (85th 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% (85th 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:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
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