ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session
Published Feb 13, 2018
9.8
CRITICALCVSS 3.0
EPSS 3.26%
Description
ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow) via a crafted certificate chain that is mishandled during RSASSA-PSS signature verification within a TLS or DTLS session.
Affected products
- Vendor n/a Product ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 Defaultn/a
- Version ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | ARM mbed TLS before 1.3.22, before 2.1.10, and before 2.7.0 | 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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/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 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.26% (0.03255) | 87.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.44% (0.03440) | 87.39th | v5 (v2026.06.15) |
| May 26, 2026 | 3.80% (0.03801) | 88.24th | v4 (v2025.03.14) |
| Oct 22, 2025 | 4.87% (0.04870) | 89.03th | v4 (v2025.03.14) |
| Oct 1, 2025 | 10.59% (0.10585) | 93.03th | v4 (v2025.03.14) |
| Jul 20, 2025 | 14.33% (0.14329) | 94.07th | v4 (v2025.03.14) |
| Mar 30, 2025 | 7.12% (0.07121) | 90.67th | v4 (v2025.03.14) |
| Mar 29, 2025 | 14.41% (0.14405) | 90.73th | v4 (v2025.03.14) |
| Mar 17, 2025 | 7.12% (0.07121) | 90.88th | v4 (v2025.03.14) |
| Dec 17, 2024 | 10.40% (0.10396) | 94.98th | v3 (v2023.03.01) |
| Jan 24, 2024 | 6.30% (0.06302) | 92.95th | v3 (v2023.03.01) |
| Dec 24, 2023 | 6.19% (0.06188) | 92.86th | v3 (v2023.03.01) |
| Sep 9, 2023 | 5.84% (0.05837) | 92.46th | v3 (v2023.03.01) |
| Aug 16, 2023 | 6.35% (0.06348) | 92.72th | v3 (v2023.03.01) |
| Aug 15, 2023 | 10.38% (0.10382) | 94.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 10.62% (0.10615) | 94.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.55% (0.04550) | 88.84th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.43% (0.04429) | 70.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.92% (0.03919) | 72.90th | v5 (v2026.06.15) |
| Apr 14, 2021 | 3.92% (0.03919) | 0.00th | v1 |
References (6)
- http://www.securityfocus.com/bid/103056 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://security.gentoo.org/glsa/201804-19 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01 x_refsource_CONFIRMMitigationVendor Advisory
- https://usn.ubuntu.com/4267-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.debian.org/security/2018/dsa-4138 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.debian.org/security/2018/dsa-4147 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/103056 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://security.gentoo.org/glsa/201804-19 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01 | x_refsource_CONFIRMMitigationVendor Advisory | |
| https://usn.ubuntu.com/4267-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.debian.org/security/2018/dsa-4138 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.debian.org/security/2018/dsa-4147 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.