CVE-2019-6681

HIGH
7.5
CVSS Score
Published: December 23, 2019 at 05:10 PM UTC
Updated: June 17, 2026 at 02:39 AM UTC
2 products affected across 1 vendorBig IP Local Traffic ManagerBIG-IP

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

On BIG-IP versions 15.0.0-15.0.1.1, 14.1.0-14.1.2, 14.0.0-14.0.1, 13.1.0-13.1.3.1, and 12.1.0-12.1.5, a memory leak in Multicast Forwarding Cache (MFC) handling in tmrouted.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

12.1.0 ≤ v ≤ 12.1.513.1.0 ≤ v < 13.1.3.214.0.0 ≤ v < 14.0.1.114.1.0 ≤ v < 14.1.2.115.0.0 ≤ 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 14.0.1.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.1.2.1, 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 yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

x_refsource_CONFIRMVendor Advisory
https://support.f5.com/csp/article/K93417064

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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