ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows local users to achieve partial plaintext recovery (for a CBC based ciphersuite) via a cache-based side-channel attack
Published Jul 28, 2018
4.7
MEDIUMCVSS 3.0
EPSS 0.37%
Description
ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 allows local users to achieve partial plaintext recovery (for a CBC based ciphersuite) via a cache-based side-channel attack.
Affected products
- Vendor n/a Product ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 Defaultn/a
- Version ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | ARM mbed TLS before 2.12.0, before 2.7.5, and before 2.1.14 | n/a |
|
Configuration 1
Configuration 2
- 8.0
- 9.0
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:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:L/AC:M/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 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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00373) | 28.81th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.37% (0.00373) | 31.16th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.05% (0.00051) | 20.30th | v3 (v2023.03.01) |
| Jun 12, 2024 | 0.05% (0.00051) | 19.67th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00051) | 17.65th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.56% (0.00555) | 12.81th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.56% (0.00555) | 0.00th | v1 |
No CWE recorded.
References (4)
- https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02 x_refsource_CONFIRMMitigationThird Party Advisory
- https://usn.ubuntu.com/4267-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.debian.org/security/2018/dsa-4296 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2018/09/msg00029.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-02 | x_refsource_CONFIRMMitigationThird Party Advisory | |
| https://usn.ubuntu.com/4267-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.debian.org/security/2018/dsa-4296 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.