How severe is CVE-2016-2071?

CVE-2016-2071 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-2071 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2071?

CVE-2016-2071 primarily affects Citrix Netscaler. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-2071?

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

When was CVE-2016-2071 published?

CVE-2016-2071 was published on 2016-02-17 and last updated on 2026-06-17.

CVE-2016-2071

CVE-2016-2071 is a critical-severity vulnerability in Citrix Netscaler with a CVSS 3.x base score of 9.8. 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-264.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Citrix Netscaler
Published: 2016-02-17
Last modified: 2026-06-17

Description

Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 11.x before 11.0 Build 64.34, 10.5 before 10.5 Build 59.13, and 10.5.e before Build 59.1305.e allows remote attackers to gain privileges via unspecified NS Web GUI commands.

Frequently asked questions

What is CVE-2016-2071?: Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 11.x before 11.0 Build 64.34, 10.5 before 10.5 Build 59.13, and 10.5.e before Build 59.1305.e allows remote attackers to gain privileges via unspecified NS Web GUI commands.
How severe is CVE-2016-2071?: CVE-2016-2071 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-2071 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2071?: CVE-2016-2071 primarily affects Citrix Netscaler. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-2071?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2016-2071 published?: CVE-2016-2071 was published on 2016-02-17 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:citrix:netscaler:10.5:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler:10.5e:*:*:*:*:*:*:*
cpe:2.3:a:citrix:netscaler:11.0:*:*:*:*:*:*:*

More vulnerabilities in Citrix Netscaler

CVE-2018-6186 — High (CVSS 8.8): Citrix NetScaler VPX through NS12.0 53.13.nc allows an SSRF attack via the /rapi/read_url URI by an authenticated…
CVE-2015-2838 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in Nitro API in Citrix NetScaler before 10.5 build 52.3nc allows remote…
CVE-2016-2072 — Medium (CVSS 6.1): The Administrative Web Interface in Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 11.x…
CVE-2015-2841 — Medium (CVSS 5.0): Citrix NetScaler AppFirewall, as used in NetScaler 10.5, allows remote attackers to bypass intended firewall…
CVE-2007-6193 — Medium (CVSS 5.0): The web management interface in Citrix NetScaler 8.0 build 47.8 stores the device's primary IP address in a cookie,…
CVE-2015-2840 — Medium (CVSS 4.3): Cross-site scripting (XSS) vulnerability in help/rt/large_search.html in Citrix NetScaler before 10.5 build 52.3nc…

All CVEs affecting Citrix Netscaler →

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities

CVE-2016-8363 — Critical (CVSS 10.0): An issue was discovered in Moxa OnCell OnCellG3470A-LTE, AWK-1131A/3131A/4131A Series, AWK-3191 Series, AWK-5232/6232…
CVE-2016-7457 — Critical (CVSS 10.0): VMware vRealize Operations (aka vROps) 6.x before 6.4.0 allows remote authenticated users to gain privileges, or halt…
CVE-2015-7425 — Critical (CVSS 10.0): The Data Protection component in the VMware vSphere GUI in IBM Tivoli Storage Manager for Virtual Environments: Data…
CVE-2015-8267 — Critical (CVSS 10.0): The PasswordReset.Controllers.ResetController.ChangePasswordIndex method in PasswordReset.dll in Dovestones AD Self…
CVE-2015-7919 — Critical (CVSS 10.0): SearchBlox 8.3 before 8.3.1 allows remote attackers to write to the config file, and consequently cause a denial of…
CVE-2015-7071 — Critical (CVSS 10.0): The File Bookmark component in Apple OS X before 10.11.2 allows attackers to bypass a sandbox protection mechanism for…

Browse all CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities →