In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.5, 12.1.0-12.1.4.1, and 11.2.1-11.6.3.2, an attacker sending specially crafted SSL records to a SSL Virtual Server will cause corruption in the SSL data structures leading to intermittent decrypt BAD_RECORD_MAC errors
Published Oct 31, 2018
7.5
HIGHCVSS 3.0
EPSS 1.36%
Description
In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.5, 12.1.0-12.1.4.1, and 11.2.1-11.6.3.2, an attacker sending specially crafted SSL records to a SSL Virtual Server will cause corruption in the SSL data structures leading to intermittent decrypt BAD_RECORD_MAC errors. Clients will be unable to access the application load balanced by a virtual server with an SSL profile until tmm is restarted.
Affected products
-
- Version 14.0.0-14.0.0.2, 13.0.0-13.1.0.7, 12.1.0-12.1.3.5, 11.6.0-11.6.3.2, 11.2.1-11.5.6StatusaffectedConstraints-
- 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
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 2
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 3
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 4
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 5
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 6
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 7
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 8
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 9
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 10
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 11
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 12
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
Configuration 13
- ≥ 11.2.1 · ≤ 11.5.6
- ≥ 11.6.0 · ≤ 11.6.3.2
- ≥ 12.1.0 · ≤ 12.1.3.5
- ≥ 13.0.0 · ≤ 13.1.0.7
- ≥ 14.0.0 · ≤ 14.0.0.2
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.
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: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 v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.36% (0.01360) | 70.73th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.36% (0.01360) | 70.49th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.14% (0.00139) | 50.01th | v3 (v2023.03.01) |
| Jun 19, 2024 | 0.14% (0.00139) | 49.73th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.17% (0.00166) | 52.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00116) | 43.82th | 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 | 0.62% (0.00624) | 17.80th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
No CWE recorded.
References (2)
- https://support.f5.com/csp/article/K43625118 x_refsource_CONFIRMMitigationVendor Advisory
- https://support.f5.com/csp/article/K43625118?utm_source=f5support&%3Butm_medium=RSS x_refsource_CONFIRM
| Link | Providers | Tags |
|---|---|---|
| https://support.f5.com/csp/article/K43625118 | x_refsource_CONFIRMMitigationVendor Advisory | |
| https://support.f5.com/csp/article/K43625118?utm_source=f5support&%3Butm_medium=RSS | x_refsource_CONFIRM |
Change history (0)
No recorded changes yet.