CVE-2018-5502

Name: CVE-2018-5502
Creator: NVD / NIST
Published: 2018-03-22T18:29:00.51+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.40%

Last modified Jun 17, 2026

CVE-2018-5502 is a vulnerability of currently unknown severity. On F5 BIG-IP versions 13.0.0 - 13.1.0.3, attackers may be able to disrupt services on the BIG-IP system with maliciously crafted client certificate. This vulnerability affects virtual servers associated with Client SSL profile which enables the use of client certificate authentication. EPSS estimates a 1.40% chance of exploitation in the next 30 days.

Description

On F5 BIG-IP versions 13.0.0 - 13.1.0.3, attackers may be able to disrupt services on the BIG-IP system with maliciously crafted client certificate. This vulnerability affects virtual servers associated with Client SSL profile which enables the use of client certificate authentication. Client certificate authentication is not enabled by default in Client SSL profile. There is no control plane exposure.

Metrics

EPSS Probability

1.40%

69.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
F5	Big-Ip Access Policy Manager	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Advanced Firewall Manager	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Analytics	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Application Acceleration Manager	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Application Security Manager	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Domain Name System	>= 13.0.0, <= 13.1.0.4
F5	Big-Ip Edge Gateway	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Global Traffic Manager	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Link Controller	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Local Traffic Manager	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Policy Enforcement Manager	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Webaccelerator	>= 13.0.0, < 13.1.0.4
F5	Big-Ip Websafe	1.0.0

References

http://www.securitytracker.com/id/1040561Third Party Advisory, VDB Entry
https://support.f5.com/csp/article/K43121447Vendor Advisory
http://www.securitytracker.com/id/1040561Third Party Advisory, VDB Entry
https://support.f5.com/csp/article/K43121447Vendor Advisory

Timeline

Published: Mar 22, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-5502?

How severe is CVE-2018-5502?

Severity scoring for CVE-2018-5502 is pending analysis. The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.

How do I fix CVE-2018-5502?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-5502?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST