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Fencer Vulns
medium 6.5

CVE-2019-6634 json

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, a high volume of malformed analytics report requests leads…

published 2019-07-03 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16193

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, a high volume of malformed analytics report requests leads to instability in restjavad process. This causes issues with both iControl REST and some portions of TMUI. The attack requires an authenticated user with any role.

Patch / fix

  • f5 big-ip_local_traffic_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_application_acceleration_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_advanced_firewall_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_analytics 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_access_policy_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_application_security_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_domain_name_system 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_edge_gateway 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_global_traffic_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_link_controller 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_policy_enforcement_manager 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_webaccelerator 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6
  • f5 big-ip_fraud_protection_service 12.1.4.1, 13.1.1.5, 14.0.0.5, 14.1.0.6

Exploit prediction

1.42% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • F5 BIG-IP

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.