In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and WebSafe software version 13.0.0 and 12.0.0 - 12.1.2, undisclosed traffic patterns sent to BIG-IP virtual servers, with the TCP Fast Open and Tail Loss Probe options enabled in the associated TCP profile, may cause a disruption of service to the Traffic Management Microkernel (TMM)
Published Dec 21, 2017
5.9
MEDIUMCVSS 3.0
EPSS 1.41%
Description
In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, GTM, Link Controller, PEM and WebSafe software version 13.0.0 and 12.0.0 - 12.1.2, undisclosed traffic patterns sent to BIG-IP virtual servers, with the TCP Fast Open and Tail Loss Probe options enabled in the associated TCP profile, may cause a disruption of service to the Traffic Management Microkernel (TMM).
Affected products
-
- Version 12.0.0 - 12.1.2StatusaffectedConstraints-
- Version 13.0.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| F5 Networks, Inc. | n/a | n/a |
|
Configuration 1
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 2
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 3
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 4
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 5
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 6
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 7
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 8
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 9
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 10
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
Configuration 11
- ≥ 12.1.0 · ≤ 12.1.2
- 13.0.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.41% (0.01410) | 71.67th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.41% (0.01410) | 71.46th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00079) | 34.62th | v3 (v2023.03.01) |
| Jul 3, 2024 | 0.08% (0.00079) | 34.46th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.08% (0.00078) | 32.46th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00134) | 46.75th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.66% (0.00663) | 18.75th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.66% (0.00663) | 0.00th | v1 |
References (2)
- http://www.securitytracker.com/id/1040046 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K81137982 x_refsource_CONFIRMIssue TrackingVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1040046 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://support.f5.com/csp/article/K81137982 | x_refsource_CONFIRMIssue TrackingVendor Advisory |
Change history (0)
No recorded changes yet.