When F5 BIG-IP ASM 13.0.0-13.1.0.1, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.5.1-11.5.6 is processing HTTP requests, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process
Published Jul 25, 2018
7.5
HIGHCVSS 3.0
EPSS 1.82%
Description
When F5 BIG-IP ASM 13.0.0-13.1.0.1, 12.1.0-12.1.3.5, 11.6.0-11.6.3.1, or 11.5.1-11.5.6 is processing HTTP requests, an unusually large number of parameters can cause excessive CPU usage in the BIG-IP ASM bd process.
Affected products
-
- Version 11.5.1-11.5.6StatusaffectedConstraints-
- Version 11.6.0-11.6.3.1StatusaffectedConstraints-
- Version 12.1.0-12.1.3.5StatusaffectedConstraints-
- Version 13.0.0-13.1.0.1StatusaffectedConstraints-
- 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. | Big-IP (asm) | n/a |
|
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.3
- ≥ 12.1.0 · ≤ 12.1.3
- ≥ 13.0.0 · ≤ 13.1.0
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 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 | 1.82% (0.01817) | 77.93th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.84% (0.01841) | 76.14th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.08% (0.00081) | 35.37th | v3 (v2023.03.01) |
| May 8, 2024 | 0.08% (0.00080) | 34.01th | v3 (v2023.03.01) |
| Mar 12, 2024 | 0.11% (0.00112) | 43.45th | v3 (v2023.03.01) |
| Dec 16, 2023 | 0.13% (0.00133) | 48.22th | v3 (v2023.03.01) |
| May 8, 2023 | 0.16% (0.00160) | 51.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00112) | 42.92th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/104906 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://support.f5.com/csp/article/K12403422 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104906 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://support.f5.com/csp/article/K12403422 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.