What’s Vulnerable › Vulnerabilities

CVE-2018-5530

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% 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-400

Description

F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, or 11.6.0-11.6.3.1 virtual servers with HTTP/2 profiles enabled are vulnerable to "HPACK Bomb".

Affected products

• F5 BIG-IP APM: 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 11.6.0 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 Analytics: 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 (AAM): 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 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 11.6.0 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 11.6.0 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 11.6.0 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 11.6.0 through 11.6.3.1; from 12.1.0 through 12.1.3.5; from 13.0.0 through 13.1.0.5

References

• http://www.securityfocus.com/bid/104908
• https://support.f5.com/csp/article/K45611803
• http://www.securityfocus.com/bid/104908
• https://support.f5.com/csp/article/K45611803

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