UpHeron
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Servers and applications

CVE-2018-15311

When F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, 11.6.0-11.6.3.2, or 11.5.1-11.5.6 is processing specially crafted TCP traffic with the Large Receive Offload (LRO) feature enabled, TMM may crash, leading to a failover event. This vulnerability is not exposed unless LRO is enabled, so most affected customers will be on 13.1.x. LRO has been available since 11.4.0 but is not enabled by default…

Severity
Medium 5.9
Published
10 Oct 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.4% in the next 30 daysHigher than 73% 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
  • From 11.5.1 up to 11.5.6
  • From 11.6.0.0 up to 11.6.3.2
  • From 12.1.0.0 up to 12.1.3.5
  • From 13.0.0.0 up to 13.1.0.5
F5 BIG-IPServers and applications · cpe:a:f5:big-ip_local_traffic_manager
  • From 11.5.1 up to 11.5.6
  • From 11.6.0.0 up to 11.6.3.2
  • From 12.1.0.0 up to 12.1.3.5
  • From 13.0.0.0 up to 13.1.0.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-15311
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-15311