On F5 BIG-IP versions 13.0.0 or 12.1.0 - 12.1.3.1, when a specifically configured virtual server receives traffic of an undisclosed nature, TMM will crash and take the configured failover action, potentially causing a denial of service
Published Mar 22, 2018
7.5
HIGHCVSS 3.0
EPSS 2.76%
Description
On F5 BIG-IP versions 13.0.0 or 12.1.0 - 12.1.3.1, when a specifically configured virtual server receives traffic of an undisclosed nature, TMM will crash and take the configured failover action, potentially causing a denial of service. The configuration which exposes this issue is not common and in general does not work when enabled in previous versions of BIG-IP. Starting in 12.1.0, BIG-IP will crash if the configuration which exposes this issue is enabled and the virtual server receives non TCP traffic. With the fix of this issue, additional configuration validation logic has been added to prevent this configuration from being applied to a virtual server. There is only data plane exposure to this issue with a non-standard configuration. There is no control plane exposure.
Affected products
- Vendor F5 Networks, Inc. Product BIG-IP (LTM, AAM, AFM, APM, ASM, Link Controller, PEM, WebSafe) Defaultn/a
- Version 12.1.0 - 12.1.3.1StatusaffectedConstraints-
- 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. | BIG-IP (LTM, AAM, AFM, APM, ASM, Link Controller, PEM, WebSafe) | n/a |
|
- ≥ 12.1.0 · < 12.1.3.2
- ≥ 13.0.0 · < 13.1.0.4
- ≥ 12.1.0 · < 12.1.3.2
- ≥ 13.0.0 · < 13.1.0.4
- ≥ 12.1.0 · < 12.1.3.2
- ≥ 13.0.0 · < 13.1.0.4
- ≥ 12.1.0 · < 12.3.1.2
- ≥ 13.0.0 · < 13.1.0.4
- ≥ 12.1.0 · < 12.1.3.2
- ≥ 13.0.0 · < 13.1.0.4
- ≥ 12.1.0 · < 12.1.3.2
- ≥ 13.0.0 · < 13.1.0.4
- ≥ 12.1.0 · < 12.1.3.2
- ≥ 13.0.0 · < 13.1.0.4
- 1.0.0
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:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:C
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.76% (0.02755) | 85.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.87% (0.02866) | 84.91th | v5 (v2026.06.15) |
| Mar 29, 2025 | 2.07% (0.02068) | 73.25th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.24% (0.00241) | 62.48th | v3 (v2023.03.01) |
| Sep 22, 2023 | 0.24% (0.00241) | 61.56th | v3 (v2023.03.01) |
| Aug 13, 2023 | 0.29% (0.00294) | 65.25th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.43% (0.00431) | 71.04th | v3 (v2023.03.01) |
| Mar 16, 2023 | 0.30% (0.00300) | 64.70th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.26% (0.00261) | 62.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01036) | 27.56th | v1 |
| Jan 6, 2022 | 1.04% (0.01036) | 26.95th | v1 |
| Sep 1, 2021 | 1.04% (0.01036) | 62.47th | v1 |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/103504 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040562 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K49440608 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/103504 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040562 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://support.f5.com/csp/article/K49440608 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.