CVE-2019-6611
mediumpriority · track · 31EPSS 0.018 · 78 %ileEUUSEPSS · scored 2026-10-28
When BIG-IP 14.0.0-14.1.0.1, 13.0.0-13.1.1.4, 12.1.0-12.1.4, 11.6.1-11.6.3.4, and 11.5.2-11.5.8 are processing certain rare data sequences occurring in PPTP VPN traffic, the BIG-IP system may execute incorrect logic. The TMM may restart and produce a core file as a result of this condition. The BIG-IP system provisioned with the CGNAT module and configured with a virtual server using a PPTP profile is exposed to this vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (70)
Products and version ranges known to be affected.
- f5 big-ip access policy manager11.5.2 → 11.5.9nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager11.6.1 → 11.6.4nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager12.1.0 → 12.1.4.1nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager13.0.0 → 13.1.1.5nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip access policy manager14.0.0 → 14.1.0.2nvdUScpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*
- f5 big-ip advanced firewall manager11.5.2 → 11.5.9nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- f5 big-ip advanced firewall manager11.6.1 → 11.6.4nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- f5 big-ip advanced firewall manager12.1.0 → 12.1.4.1nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- f5 big-ip advanced firewall manager13.0.0 → 13.1.1.5nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
- f5 big-ip advanced firewall manager14.0.0 → 14.1.0.2nvdUScpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (11)
External citations — patches, advisories, analysis.
- http://www.f5.com/products/big-ip/cnnvd
- http://www.securityfocus.com/bid/108187cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-6611cnnvd
- https://support.f5.com/csp/article/K47527163cnnvd
- https://vigilance.fr/vulnerability/F5-BIG-IP-denial-of-service-via-PPTP-29207cnnvd
- https://www.auscert.org.au/bulletins/80078cnnvd
- https://www.securityfocus.com/bid/108187cnnvd
- http://www.securityfocus.com/bid/108187enisa_euvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan