HIGH
The server in Dropbear before 2017.75 might allow post-authentication root remote code execution because of a double free in cleanup of TCP listeners when the -a option is enabled
Published May 19, 2017
8.8
HIGHCVSS 3.1
EPSS 5.69%
Description
The server in Dropbear before 2017.75 might allow post-authentication root remote code execution because of a double free in cleanup of TCP listeners when the -a option is enabled.
Affected products
No data.
Configuration 1
- < 2017.75
Configuration 2
- 8.0
Configuration 3
AND
- 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.
8.8 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
No CVSS v3.0 score for this CVE.
8.5 HIGH NVD
AV:N/AC:M/Au:S/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
5.69% 0.05688
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.05688
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 (32 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.69% (0.05688) | 92.76th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.47% (0.05467) | 91.70th | v5 (v2026.06.15) |
| May 15, 2026 | 3.90% (0.03901) | 88.40th | v4 (v2025.03.14) |
| Mar 4, 2026 | 5.16% (0.05156) | 89.69th | v4 (v2025.03.14) |
| Mar 1, 2026 | 2.54% (0.02537) | 85.25th | v4 (v2025.03.14) |
| Feb 4, 2026 | 5.16% (0.05156) | 89.61th | v4 (v2025.03.14) |
| Feb 1, 2026 | 1.90% (0.01903) | 82.92th | v4 (v2025.03.14) |
| Jan 20, 2026 | 3.90% (0.03901) | 87.93th | v4 (v2025.03.14) |
| Jan 4, 2026 | 6.16% (0.06164) | 90.52th | v4 (v2025.03.14) |
| Jan 1, 2026 | 4.17% (0.04169) | 88.41th | v4 (v2025.03.14) |
| Dec 28, 2025 | 6.16% (0.06164) | 90.51th | v4 (v2025.03.14) |
| Dec 4, 2025 | 4.74% (0.04737) | 88.99th | v4 (v2025.03.14) |
| Dec 1, 2025 | 3.18% (0.03183) | 86.58th | v4 (v2025.03.14) |
| Nov 24, 2025 | 4.74% (0.04737) | 88.93th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.95% (0.02952) | 85.24th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.49% (0.06494) | 84.74th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.95% (0.02952) | 85.55th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.50% (0.00499) | 77.09th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.50% (0.00499) | 75.61th | v3 (v2023.03.01) |
| Jul 15, 2023 | 0.50% (0.00499) | 73.14th | v3 (v2023.03.01) |
| Apr 29, 2023 | 0.53% (0.00532) | 73.69th | v3 (v2023.03.01) |
| Mar 29, 2023 | 0.57% (0.00572) | 74.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00557) | 74.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.70% (0.04695) | 89.17th | v2 (v2022.01.01) |
| Jul 12, 2022 | 4.70% (0.04695) | 88.39th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.79% (0.05785) | 89.45th | v2 (v2022.01.01) |
| Feb 13, 2022 | 5.79% (0.05785) | 77.47th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.63% (0.05634) | 76.84th | 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 |
Weaknesses (1)
References (3)
- http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2017q2/001985.html x_refsource_CONFIRMMailing ListPatchThird Party Advisory
- http://www.debian.org/security/2017/dsa-3859 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://security.netapp.com/advisory/ntap-20191004-0006/ x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2017q2/001985.html | x_refsource_CONFIRMMailing ListPatchThird Party Advisory | |
| http://www.debian.org/security/2017/dsa-3859 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://security.netapp.com/advisory/ntap-20191004-0006/ | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published May 19, 2017
Updated Aug 5, 2024
Reserved May 19, 2017
Link CVE-2017-9078
CISA Vulnrichment
Updated n/a