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CVE-2019-6684

On versions 15.0.0-15.0.1.1, 14.0.0-14.1.2.2, 13.1.0-13.1.3.1, 12.1.0-12.1.5, and 11.5.2-11.6.5.1, under certain conditions, a…

High7.5EPSS 1.0%
Published
Updated
Reserved
Assigned by
f5

Description

On versions 15.0.0-15.0.1.1, 14.0.0-14.1.2.2, 13.1.0-13.1.3.1, 12.1.0-12.1.5, and 11.5.2-11.6.5.1, under certain conditions, a multi-bladed BIG-IP Virtual Clustered Multiprocessing (vCMP) may drop broadcast packets when they are rebroadcast to the vCMP guest secondary blades. An attacker can leverage the fragmented broadcast IP packets to perform any type of fragmentation-based attack.

Scores

CVSS scores of CVE-2019-6684, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
1.0% · top 36% of all CVEs (5 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

  • DoS

Affected products

  • F5 · BIG-IP

    • affected 15.0.0-15.0.1.1
    • affected 14.0.0-14.1.2.2
    • affected 13.1.0-13.1.3.1
    • affected 12.1.0-12.1.5
    • affected 11.5.2-11.6.5.1

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .