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Servers and applications

CVE-2017-6156

When the F5 BIG-IP 12.1.0-12.1.1, 11.6.0-11.6.1, 11.5.1-11.5.5, or 11.2.1 system is configured with a wildcard IPSec tunnel endpoint, it may allow a remote attacker to disrupt or impersonate the tunnels that have completed phase 1 IPSec negotiations. The attacker must possess the necessary credentials to negotiate the phase 1 of the IPSec exchange to exploit this vulnerability; in many…

Severity
Medium 6.4
Published
13 Apr 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
0.9% in the next 30 daysHigher than 60% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_access_policy_manager
  • Version 11.2.1
  • From 11.5.1 up to 11.5.5
  • Version 11.6.1
  • From 12.1.0 up to 12.1.1
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • Version 11.2.1
  • From 11.5.1 up to 11.5.5
  • Version 11.6.1
  • From 12.1.0 up to 12.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-6156
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-6156