How severe is CVE-2016-1391?

CVE-2016-1391 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-1391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1391?

CVE-2016-1391 primarily affects Cisco Prime Network Analysis Module Software. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1391?

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-2016-1391 published?

CVE-2016-1391 was published on 2016-06-04 and last updated on 2026-06-17.

CVE-2016-1391

CVE-2016-1391 is a high-severity vulnerability in Cisco Prime Network Analysis Module Software with a CVSS 3.x base score of 8.8. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Prime Network Analysis Module Software
Published: 2016-06-04
Last modified: 2026-06-17

Description

Cisco Prime Network Analysis Module (NAM) before 6.1(1) patch.6.1-2-final and 6.2.x before 6.2(2) and Prime Virtual Network Analysis Module (vNAM) before 6.1(1) patch.6.1-2-final and 6.2.x before 6.2(2) allow remote authenticated users to execute arbitrary OS commands via a crafted HTTP request, aka Bug ID CSCuy21889.

Frequently asked questions

What is CVE-2016-1391?: Cisco Prime Network Analysis Module (NAM) before 6.1(1) patch.6.1-2-final and 6.2.x before 6.2(2) and Prime Virtual Network Analysis Module (vNAM) before 6.1(1) patch.6.1-2-final and 6.2.x before 6.2(2) allow remote authenticated users to execute arbitrary OS commands via a crafted HTTP request, aka Bug ID CSCuy21889.
How severe is CVE-2016-1391?: CVE-2016-1391 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-1391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1391?: CVE-2016-1391 primarily affects Cisco Prime Network Analysis Module Software. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1391?: 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-2016-1391 published?: CVE-2016-1391 was published on 2016-06-04 and last updated on 2026-06-17.

References

Affected products (13)

cpe:2.3:a:cisco:prime_network_analysis_module_software:5.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:5.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:5.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:5.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:5.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:6.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:6.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:6.1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_network_analysis_module_software:6.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_virtual_network_analysis_module_software:6.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_virtual_network_analysis_module_software:6.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_virtual_network_analysis_module_software:6.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:prime_virtual_network_analysis_module_software:6.2.1:*:*:*:*:*:*:*

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CVE-2016-1388 — Critical (CVSS 9.8): Cisco Prime Network Analysis Module (NAM) before 6.1(1) patch.6.1-2-final and 6.2.x before 6.2(1) and Prime Virtual…
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