CVE-2019-6623

HIGH
7.5
CVSS Score
Published: July 2, 2019 at 09:03 PM UTC
Updated: June 17, 2026 at 02:39 AM UTC
14 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 3%

Description

On BIG-IP 14.1.0-14.1.0.5, 14.0.0-14.0.0.4, 13.0.0-13.1.1.4, and 12.1.0-12.1.4, undisclosed traffic sent to BIG-IP iSession virtual server may cause the Traffic Management Microkernel (TMM) to restart, resulting in a Denial-of-Service (DoS).

Affected

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

12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v < 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
Affected range stops below 14.0.0.4, so it looks safe — our inference, not a vendor statement
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5
12.1.0 ≤ v ≤ 12.1.413.0.0 ≤ v ≤ 13.1.1.414.0.0 ≤ v ≤ 14.0.0.414.1.0 ≤ v ≤ 14.1.0.5

Remediation

No guide yet

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

CVSS

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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