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Vulnerability record · CVE-2018-15318 · published 31 October 2018

CVE-2018-15318: F5 big-ip local traffic manager improper input validation vulnerability

F5 · Big Ip Local Traffic Manager

In BIG-IP 14.0.0-14.0.0.2, 13.1.0.4-13.1.1.1, or 12.1.3.4-12.1.3.6, If an MPTCP connection receives an abort signal while the initial flow is not the primary flow, the initial flow will remain after the closing procedure is complete. TMM may restart and produce a core file as a result of this condition.

7.5 CVSS 3.0 High EPSS 1.3% · top 29.7% CWE-20 · Improper input validation
7.5CVSS 3.0 base score, v2 7.8
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
13Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

In BIG-IP 14.0.0-14.0.0.2, 13.1.0.4-13.1.1.1, or 12.1.3.4-12.1.3.6, If an MPTCP connection receives an abort signal while the initial flow is not the primary flow, the initial flow will remain after the closing procedure is complete. TMM may restart and produce a core file as a result of this condition.

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

Affected products

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

References

LinkTags
https://support.f5.com/csp/article/K16248201 Vendor Advisory
https://support.f5.com/csp/article/K16248201 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-2018-15318), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.