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Vulnerability record · CVE-2018-5516 · published 2 May 2018

CVE-2018-5516: F5 big-ip local traffic manager incorrect permission assignment vulnerability

F5 · Big Ip Local Traffic Manager

On F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.2, or 11.2.1-11.6.3.1, Enterprise Manager 3.1.1, BIG-IQ Centralized Management 5.0.0-5.4.0 or 4.6.0, BIG-IQ Cloud and Orchestration 1.0.0, or F5 iWorkflow 2.0.2-2.3.0, authenticated users granted TMOS Shell (tmsh) access can access objects on the file system which would normally be disallowed by tmsh restrictions. This allows for authenticated, low privileged attackers to exfiltrate objects on the file system which should not be allowed.

4.7 CVSS 3.0 Medium EPSS 0.32% · top 78.1% CWE-732 · Incorrect permission assignment
4.7CVSS 3.0 base score, v2 4.7
0.32%EPSS exploitation probability, 30 days
NoNot in CISA KEV
17Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

On F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.2, or 11.2.1-11.6.3.1, Enterprise Manager 3.1.1, BIG-IQ Centralized Management 5.0.0-5.4.0 or 4.6.0, BIG-IQ Cloud and Orchestration 1.0.0, or F5 iWorkflow 2.0.2-2.3.0, authenticated users granted TMOS Shell (tmsh) access can access objects on the file system which would normally be disallowed by tmsh restrictions. This allows for authenticated, low privileged attackers to exfiltrate objects on the file system which should not be allowed.

CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

17 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securitytracker.com/id/1040799 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040800 Third Party AdvisoryVDB Entry
https://support.f5.com/csp/article/K37442533 Vendor Advisory
http://www.securitytracker.com/id/1040799 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040800 Third Party AdvisoryVDB Entry
https://support.f5.com/csp/article/K37442533 Vendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-5516), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.