CVE-2018-5537

Severity: medium (CVSS 5.3 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-07-25 · updated 2026-06-17
Weakness: CWE-20

Description

A remote attacker may be able to disrupt services on F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.2.1-11.5.6 if the TMM virtual server is configured with a HTML or a Rewrite profile. TMM may restart while processing some specially prepared HTML content from the back end.

Affected products

F5 BIG-IP APM: from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
BIG-IP: from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.2; from 13.0.0 through 13.1.0.5
F5 Networks, Inc. BIG-IP (AAM): from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
BIG-IP ASM: from 10.1.0 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
F5 Big-Ip Edge Gateway: from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
F5 Big-Ip Global Traffic Manager: from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
F5 BIG-IP (LTM): from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
F5 Networks, Inc. BIG-IP (PEM): from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
F5 Big-Ip Webaccelerator: from 11.2.1 through 11.5.6; from 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5
F5 Big-Ip Websafe: from 11.2.1 through 11.5.6; from 11.6.1 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5

References

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