In BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe software 12.0.0 to 12.1.1, in some cases the Traffic Management Microkernel (TMM) may crash when processing fragmented packets
Published Nov 22, 2017
5.9
MEDIUMCVSS 3.1
EPSS 1.93%
Description
In BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe software 12.0.0 to 12.1.1, in some cases the Traffic Management Microkernel (TMM) may crash when processing fragmented packets. This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. If the affected BIG-IP system is configured as part of a device group, it will trigger a failover to the peer device.
Affected products
-
- Version 12.0.0, 12.1.1StatusaffectedConstraints-
- 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 |
|
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 12.0.0 · ≤ 12.1.1
- ≥ 2.5.0 · ≤ 2.6.2
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
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 v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.93% (0.01928) | 79.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.93% (0.01928) | 77.26th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.31% (0.00307) | 70.16th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.31% (0.00307) | 69.07th | v3 (v2023.03.01) |
| May 25, 2023 | 0.31% (0.00307) | 65.46th | v3 (v2023.03.01) |
| May 8, 2023 | 0.29% (0.00291) | 64.33th | v3 (v2023.03.01) |
| Apr 15, 2023 | 0.41% (0.00411) | 69.99th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.67% (0.00668) | 76.59th | 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 | 0.88% (0.00884) | 25.39th | v1 |
| Jan 6, 2022 | 0.88% (0.00884) | 24.77th | v1 |
| Sep 1, 2021 | 0.88% (0.00884) | 59.15th | v1 |
| Apr 14, 2021 | 0.88% (0.00884) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/102264 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039949 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K65615624 x_refsource_CONFIRMIssue TrackingMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102264 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039949 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://support.f5.com/csp/article/K65615624 | x_refsource_CONFIRMIssue TrackingMitigationVendor Advisory |
Change history (0)
No recorded changes yet.