How severe is CVE-2018-1154?

CVE-2018-1154 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1154 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1154?

CVE-2018-1154 affects Tenable Securitycenter. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1154?

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-2018-1154 published?

CVE-2018-1154 was published on 2018-08-02 and last updated on 2026-06-17.

CVE-2018-1154

CVE-2018-1154 is a high-severity vulnerability in Tenable Securitycenter 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.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 3.3
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Tenable Securitycenter
Published: 2018-08-02
Last modified: 2026-06-17

Description

In SecurityCenter versions prior to 5.7.0, a username enumeration issue could allow an unauthenticated attacker to automate the discovery of username aliases via brute force, ultimately facilitating unauthorized access. Server response output has been unified to correct this issue.

Frequently asked questions

What is CVE-2018-1154?: In SecurityCenter versions prior to 5.7.0, a username enumeration issue could allow an unauthenticated attacker to automate the discovery of username aliases via brute force, ultimately facilitating unauthorized access. Server response output has been unified to correct this issue.
How severe is CVE-2018-1154?: CVE-2018-1154 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1154 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1154?: CVE-2018-1154 affects Tenable Securitycenter. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1154?: 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-2018-1154 published?: CVE-2018-1154 was published on 2018-08-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tenable:securitycenter:*:*:*:*:*:*:*:*

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