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Fencer Vulns
low 3.3

CVE-2019-6679 json

On BIG-IP versions 15.0.0-15.0.1, 14.1.0.2-14.1.2.2, 14.0.0.5-14.0.1, 13.1.1.5-13.1.3.1, 12.1.4.1-12.1.5, 11.6.4-11.6.5, and 11.5.9-11.5.10…

published 2019-12-23 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16238

cvss
3.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

On BIG-IP versions 15.0.0-15.0.1, 14.1.0.2-14.1.2.2, 14.0.0.5-14.0.1, 13.1.1.5-13.1.3.1, 12.1.4.1-12.1.5, 11.6.4-11.6.5, and 11.5.9-11.5.10, the access controls implemented by scp.whitelist and scp.blacklist are not properly enforced for paths that are symlinks. This allows authenticated users with SCP access to overwrite certain configuration files that would otherwise be restricted.

Patch / fix

  • f5 big-ip_access_policy_manager 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_advanced_firewall_manager 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_analytics 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_application_acceleration_manager 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_application_security_manager 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_domain_name_system 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_edge_gateway 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_fraud_protection_service 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_global_traffic_manager 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_link_controller 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_local_traffic_manager 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_policy_enforcement_manager 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1
  • f5 big-ip_webaccelerator 11.6.5.1, 13.1.3.2, 14.0.1.1, 14.1.2.3, 15.0.1.1

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 3.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 3.6 AV:L/AC:L/Au:N/C:N/I:P/A:P

Affected products

  • F5 BIG-IP

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.