On F5 BIG-IP versions 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.2, or 11.5.1-11.5.5, vCMP guests running on VIPRION 2100, 4200 and 4300 series blades cannot correctly decrypt ciphertext from established SSL sessions with small MTU
Published Apr 13, 2018
7.5
HIGHCVSS 3.0
EPSS 1.09%
Description
On F5 BIG-IP versions 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.2, or 11.5.1-11.5.5, vCMP guests running on VIPRION 2100, 4200 and 4300 series blades cannot correctly decrypt ciphertext from established SSL sessions with small MTU.
Affected products
-
- Version 11.5.1-11.5.5StatusaffectedConstraints-
- Version 11.6.1-11.6.2StatusaffectedConstraints-
- 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. | n/a | n/a |
|
Configuration 1
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 2
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 3
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 4
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 5
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 6
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 7
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 8
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 9
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 10
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 11
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 12
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
Configuration 13
- ≥ 11.5.1 · ≤ 11.5.5
- ≥ 11.6.1 · ≤ 11.6.2
- ≥ 12.1.0 · ≤ 12.1.3
- 13.0.0
Running on/with
- n/a
- n/a
- n/a
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:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/A:N
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 2, 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 2, 2026 | 1.09% (0.01090) | 64.17th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.11% (0.01111) | 64.47th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.17% (0.00168) | 54.13th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.17% (0.00168) | 53.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00136) | 47.20th | 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 | 0.42% (0.00416) | 10.04th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
No CWE recorded.
References (1)
- https://support.f5.com/csp/article/K52521791 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://support.f5.com/csp/article/K52521791 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.