An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2
Published Apr 20, 2017
8.1
HIGHCVSS 3.0
EPSS 3.42%
Description
An exploitable free of a stack pointer vulnerability exists in the x509 certificate parsing code of ARM mbed TLS before 1.3.19, 2.x before 2.1.7, and 2.4.x before 2.4.2. A specially crafted x509 certificate, when parsed by mbed TLS library, can cause an invalid free of a stack pointer leading to a potential remote code execution. In order to exploit this vulnerability, an attacker can act as either a client or a server on a network to deliver malicious x509 certificates to vulnerable applications.
Affected products
-
- Version 2.4.0StatusaffectedConstraints-
- Version
- ≤ 1.3.18
- 2.0.0
- 2.1.0
- 2.1.1
- 2.1.2
- 2.1.3
- 2.1.4
- 2.1.5
- 2.1.6
- 2.4.0
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:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (22 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.42% (0.03418) | 88.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.39% (0.03390) | 87.21th | v5 (v2026.06.15) |
| May 27, 2026 | 0.69% (0.00686) | 71.94th | v4 (v2025.03.14) |
| Dec 22, 2025 | 3.12% (0.03121) | 86.41th | v4 (v2025.03.14) |
| Apr 21, 2025 | 4.18% (0.04180) | 88.07th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.61% (0.05614) | 89.38th | v4 (v2025.03.14) |
| Mar 29, 2025 | 14.97% (0.14971) | 90.95th | v4 (v2025.03.14) |
| Mar 19, 2025 | 5.61% (0.05614) | 89.13th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.50% (0.04498) | 88.38th | v4 (v2025.03.14) |
| Dec 17, 2024 | 2.20% (0.02197) | 89.07th | v3 (v2023.03.01) |
| Sep 30, 2024 | 5.10% (0.05097) | 93.08th | v3 (v2023.03.01) |
| Jun 12, 2024 | 6.27% (0.06268) | 93.63th | v3 (v2023.03.01) |
| Feb 9, 2024 | 7.04% (0.07042) | 93.72th | v3 (v2023.03.01) |
| May 8, 2023 | 6.46% (0.06465) | 92.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 6.82% (0.06823) | 92.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.79% (0.05785) | 90.41th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.79% (0.05785) | 89.45th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.79% (0.05785) | 77.27th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.83% (0.01828) | 35.38th | v1 |
| Jan 6, 2022 | 1.83% (0.01828) | 34.69th | v1 |
| Sep 1, 2021 | 1.83% (0.01828) | 74.99th | v1 |
| Apr 14, 2021 | 1.83% (0.01828) | 0.00th | v1 |
References (3)
- http://www.talosintelligence.com/reports/TALOS-2017-0274/ x_refsource_MISCExploitTechnical DescriptionThird Party AdvisoryVDB Entry
- https://security.gentoo.org/glsa/201706-18 vendor-advisoryx_refsource_GENTOO
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2017-01 x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.talosintelligence.com/reports/TALOS-2017-0274/ | x_refsource_MISCExploitTechnical DescriptionThird Party AdvisoryVDB Entry | |
| https://security.gentoo.org/glsa/201706-18 | vendor-advisoryx_refsource_GENTOO | |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2017-01 | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.