How severe is CVE-2018-14891?

CVE-2018-14891 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-14891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-14891?

CVE-2018-14891 affects Vectra Cognito. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-14891?

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-2018-14891 published?

CVE-2018-14891 was published on 2018-09-21 and last updated on 2026-06-17.

CVE-2018-14891

CVE-2018-14891 is a high-severity vulnerability in Vectra Cognito with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Vectra Cognito
Published: 2018-09-21
Last modified: 2026-06-17

Description

Management Console in Vectra Networks Cognito Brain and Sensor before 4.3 contains a local privilege escalation vulnerability.

Frequently asked questions

What is CVE-2018-14891?: Management Console in Vectra Networks Cognito Brain and Sensor before 4.3 contains a local privilege escalation vulnerability.
How severe is CVE-2018-14891?: CVE-2018-14891 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-14891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-14891?: CVE-2018-14891 affects Vectra Cognito. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-14891?: 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-2018-14891 published?: CVE-2018-14891 was published on 2018-09-21 and last updated on 2026-06-17.

References

https://vectra.ai/security-advisories

Affected products (1)

cpe:2.3:a:vectra:cognito:*:*:*:*:*:*:*:*

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