In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator and WebSafe software version 13.0.0, 12.0.0 - 12.1.2, 11.6.0 - 11.6.1 and 11.5.0 - 11.5.4, in some circumstances, Traffic Management Microkernel (TMM) does not properly handle certain malformed TLS1.2 records, which allows remote attackers to cause a denial-of-service (DoS) or possible remote command execution on the BIG-IP system
Published Dec 21, 2017
8.1
HIGHCVSS 3.0
EPSS 3.94%
Description
In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator and WebSafe software version 13.0.0, 12.0.0 - 12.1.2, 11.6.0 - 11.6.1 and 11.5.0 - 11.5.4, in some circumstances, Traffic Management Microkernel (TMM) does not properly handle certain malformed TLS1.2 records, which allows remote attackers to cause a denial-of-service (DoS) or possible remote command execution on the BIG-IP system.
Affected products
-
- Version 11.5.0 - 11.5.4StatusaffectedConstraints-
- Version 11.6.0 - 11.6.1StatusaffectedConstraints-
- 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
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 2
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 3
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 4
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 5
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 6
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 7
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 8
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 9
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 10
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 11
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 12
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 13.0.0
Configuration 13
- ≥ 11.6.0 · ≤ 11.6.1
- ≥ 12.0.0 · ≤ 12.1.2
- 11.5.0
- 11.5.1
- 11.5.2
- 11.5.3
- 11.5.4
- 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:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/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 v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.94% (0.03935) | 90.05th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.94% (0.03935) | 89.00th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.59% (0.02591) | 84.26th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.59% (0.05589) | 83.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.07% (0.02069) | 82.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00231) | 62.10th | v3 (v2023.03.01) |
| Mar 25, 2024 | 0.19% (0.00188) | 55.26th | v3 (v2023.03.01) |
| Dec 19, 2023 | 0.18% (0.00182) | 55.45th | v3 (v2023.03.01) |
| May 14, 2023 | 0.18% (0.00177) | 53.45th | v3 (v2023.03.01) |
| May 8, 2023 | 0.19% (0.00186) | 54.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00260) | 61.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02166) | 80.16th | v2 (v2022.01.01) |
| Sep 17, 2022 | 2.17% (0.02166) | 79.34th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.98% (0.01978) | 77.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.98% (0.01978) | 56.34th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.46% (0.01459) | 32.95th | v1 |
| Jan 6, 2022 | 1.46% (0.01459) | 32.25th | v1 |
| Sep 1, 2021 | 1.46% (0.01459) | 72.46th | v1 |
| Apr 14, 2021 | 1.46% (0.01459) | 0.00th | v1 |
References (2)
- http://www.securitytracker.com/id/1040054 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K02714910 x_refsource_CONFIRMIssue TrackingVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1040054 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://support.f5.com/csp/article/K02714910 | x_refsource_CONFIRMIssue TrackingVendor Advisory |
Change history (0)
No recorded changes yet.