CVE-2019-6600

Severity: medium (CVSS 6.1 v3.1)
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: 2019-03-13 · updated 2026-06-17
Weakness: CWE-79

Description

In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.3, 12.1.0-12.1.3.7, 11.6.1-11.6.3.2, or 11.5.1-11.5.8, when remote authentication is enabled for administrative users and all external users are granted the "guest" role, unsanitized values can be reflected to the client via the login page. This can lead to a cross-site scripting attack against unauthenticated clients.

Affected products

F5 BIG-IP APM: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
BIG-IP: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Big-Ip Analytics: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Networks, Inc. BIG-IP (AAM): from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
BIG-IP ASM: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 BIG-IP DNS: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Big-Ip Edge Gateway: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Big-Ip Fraud Protection Service: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Big-Ip Global Traffic Manager: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Big-Ip Link Controller: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 BIG-IP (LTM): from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Networks, Inc. BIG-IP (PEM): from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2
F5 Big-Ip Webaccelerator: from 11.5.1 through 11.5.8; from 11.6.1 through 11.6.3.2; from 12.1.0 through 12.1.3.7; from 13.0.0 through 13.1.1.3; from 14.0.0 through 14.0.0.2

References

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