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High severity7.5NVD Advisory· Published Dec 24, 2020· Updated Jun 17, 2026

CVE-2020-27720

CVE-2020-27720

Description

On BIG-IP LTM/CGNAT version 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5, when processing NAT66 traffic with Port Block Allocation (PBA) mode and SP-DAG enabled, and dag-ipv6-prefix-len configured with a value less than the default of 128, an undisclosed traffic pattern may cause the Traffic Management Microkernel (TMM) to restart.

Affected products

2
  • F5, Inc./BIG-IP LTMllm-fuzzy2 versions
    16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5+ 1 more
    • (no CPE)range: 16.0.0-16.0.0.1, 15.1.0-15.1.0.5, 14.1.0-14.1.3, and 13.1.0-13.1.3.5
    • (no CPE)

Patches

Vulnerability mechanics

References

1

News mentions

0

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