CVE-2019-6684
HIGH
7.5
CVSS Score
Published: December 23, 2019 at 05:23 PM UTC
Updated: June 17, 2026 at 02:39 AM UTC
12 products affected across 1 vendorBig IP Access Policy ManagerBig IP Application Security ManagerBig IP Advanced Firewall Manager
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
11.5.2 ≤ v ≤ 11.6.512.1.0 ≤ v ≤ 12.1.513.0.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.1.2.315.0.0 ≤ v < 15.1.0
Affected range stops below 13.1.3.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.1.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://support.f5.com/csp/article/K95117754CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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