Medium severity5.9NVD Advisory· Published Oct 10, 2018· Updated Jun 17, 2026
CVE-2018-15311
CVE-2018-15311
Description
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 until 13.1.0.
Affected products
2- F5, Inc./Big Ip (ltm, Aam, Afm, Analytics, Apm, Asm, DNS, Edge Gateway, Fps, Gtm, Link Controller, Pem, Webaccelerator)cpe-rescueRange: 13.0.0-13.1.0.5
Patches
Vulnerability mechanics
References
1- support.f5.com/csp/article/K07550539nvdMitigationVendor Advisory
News mentions
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