HIGH
In WinSCP before 5.14 beta, due to missing validation, the scp implementation would accept arbitrary files sent by the server, potentially overwriting unrelated files
Published Jan 10, 2019
7.5
HIGHCVSS 3.0
EPSS 2.77%
Description
In WinSCP before 5.14 beta, due to missing validation, the scp implementation would accept arbitrary files sent by the server, potentially overwriting unrelated files. This affects TSCPFileSystem::SCPSink in core/ScpFileSystem.cpp.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
6.4 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.77% 0.02768
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.02768
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.77% (0.02768) | 85.81th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.53% (0.02525) | 82.76th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.64% (0.00636) | 79.34th | v3 (v2023.03.01) |
| Jul 12, 2024 | 0.64% (0.00636) | 79.31th | v3 (v2023.03.01) |
| Jun 2, 2024 | 0.78% (0.00776) | 81.34th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.97% (0.00969) | 82.84th | v3 (v2023.03.01) |
| Jan 4, 2024 | 0.96% (0.00961) | 81.56th | v3 (v2023.03.01) |
| Jun 8, 2023 | 0.85% (0.00852) | 79.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.90% (0.00904) | 80.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.45% (0.01454) | 32.67th | v1 |
| Jan 6, 2022 | 1.45% (0.01454) | 31.96th | v1 |
| Sep 1, 2021 | 1.45% (0.01454) | 71.88th | v1 |
| Apr 14, 2021 | 1.45% (0.01454) | 0.00th | v1 |
Weaknesses (1)
References (6)
- http://www.securityfocus.com/bid/106526 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54 x_refsource_MISCPatchThird Party Advisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt x_refsource_MISCMitigationThird Party Advisory
- https://winscp.net/eng/docs/history x_refsource_MISCRelease NotesVendor Advisory
- https://winscp.net/tracker/1675 x_refsource_MISCPatchVendor Advisory
- https://www.oracle.com/security-alerts/cpujan2020.html x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106526 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://github.com/winscp/winscp/commit/49d876f2c5fc00bcedaa986a7cf6dedd6bf16f54 | x_refsource_MISCPatchThird Party Advisory | |
| https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt | x_refsource_MISCMitigationThird Party Advisory | |
| https://winscp.net/eng/docs/history | x_refsource_MISCRelease NotesVendor Advisory | |
| https://winscp.net/tracker/1675 | x_refsource_MISCPatchVendor Advisory | |
| https://www.oracle.com/security-alerts/cpujan2020.html | x_refsource_MISC |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 10, 2019
Updated Aug 5, 2024
Reserved Jan 10, 2019
Link CVE-2018-20684
CISA Vulnrichment
Updated n/a