What’s Vulnerable › Vulnerabilities

CVE-2018-1154

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-08-02 · updated 2026-08-17

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.

Affected products

• Tenable, Inc. Security Center: before 5.7.0 — fixed in 5.7.0

How to fix

Upgrade to a fixed version: Tenable, Inc. Security Center 5.7.0. Check the vendor advisory for mitigations.

References

• http://www.securitytracker.com/id/1041431
• https://www.tenable.com/security/tns-2018-11
• http://www.securitytracker.com/id/1041431
• https://www.tenable.com/security/tns-2018-11

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