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CVE-2016-7476

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-05-11 · updated 2026-06-17
• Weakness: CWE-20

Description

The Traffic Management Microkernel (TMM) in F5 BIG-IP LTM, AAM, AFM, APM, ASM, GTM, Link Controller, PEM, PSM, and WebSafe 11.6.0 before 11.6.0 HF6, 11.5.0 before 11.5.3 HF2, and 11.3.0 before 11.4.1 HF10 may suffer from a memory leak while handling certain types of TCP traffic. Remote attackers may cause a denial of service (DoS) by way of a crafted TCP packet.

Affected products

• F5 BIG-IP APM: 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• BIG-IP: 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• F5 Networks, Inc. BIG-IP (AAM): 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• BIG-IP ASM: 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• F5 Big-Ip Global Traffic Manager: 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• F5 Big-Ip Link Controller: 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• F5 BIG-IP (LTM): 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• F5 Networks, Inc. BIG-IP (PEM): 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.2 (+2)
• F5 Big-Ip Protocol Security Module: 11.3.0, 11.4.0, 11.4.1
• F5 Big-Ip Websafe: 11.6.0

References

• http://www.securityfocus.com/bid/94353
• http://www.securitytracker.com/id/1037274
• https://support.f5.com/csp/#/article/K87416818
• http://www.securityfocus.com/bid/94353
• http://www.securitytracker.com/id/1037274
• https://support.f5.com/csp/#/article/K87416818

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