In F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, and WebSafe 12.1.0 through 12.1.2, certain values in a TLS abbreviated handshake when using a client SSL profile with the Session Ticket option enabled may cause disruption of service to the Traffic Management Microkernel (TMM)
Published Oct 20, 2017
5.9
MEDIUMCVSS 3.0
EPSS 1.06%
Description
In F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, and WebSafe 12.1.0 through 12.1.2, certain values in a TLS abbreviated handshake when using a client SSL profile with the Session Ticket option enabled may cause disruption of service to the Traffic Management Microkernel (TMM). The Session Ticket option is disabled by default.
Affected products
- Vendor F5 Networks, Inc. Product F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, WebSafe Defaultn/a
- Version 12.1.0 through 12.1.2StatusaffectedConstraints-
- 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. | F5 BIG-IP LTM, AAM, AFM, APM, ASM, Link Controller, PEM, WebSafe | n/a |
|
- 12.1.0
- 12.1.1
- 12.1.2
- 12.1.0
- 12.1.1
- 12.1.2
- 12.1.0
- 12.1.1
- 12.1.2
- 12.1.0
- 12.1.1
- 12.1.2
- 12.1.0
- 12.1.1
- 12.1.2
- 12.1.0
- 12.1.1
- 12.1.2
- 12.1.0
- 12.1.1
- 12.1.2
- 12.1.0
- 12.1.1
- 12.1.2
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.06% (0.01065) | 63.44th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.06% (0.01065) | 63.21th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.12% (0.00118) | 46.49th | v3 (v2023.03.01) |
| Mar 24, 2024 | 0.12% (0.00118) | 44.94th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00104) | 40.75th | 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 | 0.44% (0.00442) | 10.76th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.44% (0.00442) | 0.00th | v1 |
References (1)
- https://support.f5.com/csp/article/K21154730 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://support.f5.com/csp/article/K21154730 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.