CVE-2019-6677
HIGH
7.5
CVSS Score
Published: December 23, 2019 at 04:50 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 BIG-IP versions 15.0.0-15.0.1, 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, under certain conditions when using custom TCP congestion control settings in a TCP profile, TMM stops processing traffic when processed by an iRule.
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, so it looks safe — our inference, not a vendor statement
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 < 15.0.1.1
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 15.0.1.1, 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/K06747393CVSS
- 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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