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Vulnerability record · CVE-2017-6163 · published 27 October 2017

CVE-2017-6163: F5 big-ip local traffic manager memory buffer overflow vulnerability

F5 · Big Ip Local Traffic Manager

In F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, PSM software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1, 11.4.0 to 11.5.4, when a virtual server uses the standard configuration of HTTP/2 or SPDY profile with Client SSL profile, and the client initiates a number of concurrent streams beyond the advertised limit can cause a disruption of service. Remote client initiating stream beyond the advertised limit can cause a disruption of service. The Traffic Management Microkernel (TMM) data plane is exposed to this issue; the control plane is not exposed.

5.9 CVSS 3.0 Medium EPSS 1.7% · top 24.1% CWE-119 · Memory buffer overflow
5.9CVSS 3.0 base score, v2 4.3
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

In F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, PSM software version 12.0.0 to 12.1.2, 11.6.0 to 11.6.1, 11.4.0 to 11.5.4, when a virtual server uses the standard configuration of HTTP/2 or SPDY profile with Client SSL profile, and the client initiates a number of concurrent streams beyond the advertised limit can cause a disruption of service. Remote client initiating stream beyond the advertised limit can cause a disruption of service. The Traffic Management Microkernel (TMM) data plane is exposed to this issue; the control plane is not exposed.

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/101606 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039671 Third Party AdvisoryVDB Entry
https://support.f5.com/csp/article/K22541983 Vendor Advisory
http://www.securityfocus.com/bid/101606 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039671 Third Party AdvisoryVDB Entry
https://support.f5.com/csp/article/K22541983 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-6163), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.