What’s Vulnerable › Vulnerabilities

CVE-2018-5535

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2018-07-19 · updated 2026-06-17
• Weakness: CWE-20

Description

On F5 BIG-IP 14.0.0, 13.0.0-13.1.0, 12.1.0-12.1.3, or 11.5.1-11.6.3 specifically crafted HTTP responses, when processed by a Virtual Server with an associated QoE profile that has Video enabled, may cause TMM to incorrectly buffer response data causing the TMM to restart resulting in a Denial of Service.

Affected products

• F5 BIG-IP APM: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• BIG-IP: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Big-Ip Analytics: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Networks, Inc. BIG-IP (AAM): from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• BIG-IP ASM: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 BIG-IP DNS: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Big-Ip Edge Gateway: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Big-Ip Fraud Protection Service: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Big-Ip Global Traffic Manager: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Big-Ip Link Controller: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 BIG-IP (LTM): from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Networks, Inc. BIG-IP (PEM): from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0
• F5 Big-Ip Webaccelerator: from 11.2.1 through 11.6.3; from 12.1.0 through 12.1.3; from 13.0.0 through 13.1.1; 14.0.0

References

• http://www.securitytracker.com/id/1041344
• https://support.f5.com/csp/article/K19634255
• http://www.securitytracker.com/id/1041344
• https://support.f5.com/csp/article/K19634255

Get alerted when CVE-2018-5535 or the next vulnerability affects your stack