How severe is CVE-2016-4391?

CVE-2016-4391 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-2016-4391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4391?

CVE-2016-4391 affects Hp Arcsight Winc Connector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-4391?

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-2016-4391 published?

CVE-2016-4391 was published on 2018-08-06 and last updated on 2026-06-17.

CVE-2016-4391

CVE-2016-4391 is a critical-severity vulnerability in Hp Arcsight Winc Connector with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Hp Arcsight Winc Connector
Published: 2018-08-06
Last modified: 2026-06-17

Description

A remote code execution security vulnerability has been identified in all versions of the HP ArcSight WINC Connector prior to v7.3.0.

Frequently asked questions

What is CVE-2016-4391?: A remote code execution security vulnerability has been identified in all versions of the HP ArcSight WINC Connector prior to v7.3.0.
How severe is CVE-2016-4391?: CVE-2016-4391 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-2016-4391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4391?: CVE-2016-4391 affects Hp Arcsight Winc Connector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-4391?: 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-2016-4391 published?: CVE-2016-4391 was published on 2018-08-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hp:arcsight_winc_connector:*:*:*:*:*:*:*:*

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