Heap-based buffer overflow in cygwin1.dll in Cygwin 1.5.7 and earlier allows context-dependent attackers to execute arbitrary code via a filename with a certain length, as demonstrated by a remote authenticated user who uses the SCP protocol to send a file to the Cygwin machine, and thereby causes scp.exe on this machine to execute, and then overwrite heap memory with characters from the filename
Published Nov 30, 2007
8.5
HIGHCVSS 2.0
EPSS 5.59%
Description
Heap-based buffer overflow in cygwin1.dll in Cygwin 1.5.7 and earlier allows context-dependent attackers to execute arbitrary code via a filename with a certain length, as demonstrated by a remote authenticated user who uses the SCP protocol to send a file to the Cygwin machine, and thereby causes scp.exe on this machine to execute, and then overwrite heap memory with characters from the filename. NOTE: it is also reported that a related issue might exist in 1.5.7 through 1.5.19.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:S/C:C/I:C/A:C
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.59% (0.05589) | 92.65th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.59% (0.05589) | 91.88th | v5 (v2026.06.15) |
| Mar 30, 2025 | 5.65% (0.05654) | 89.42th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.56% (0.04558) | 81.63th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.65% (0.05654) | 89.68th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.10% (0.05097) | 92.82th | v3 (v2023.03.01) |
| Dec 12, 2024 | 2.85% (0.02849) | 91.08th | v3 (v2023.03.01) |
| Jul 19, 2024 | 2.74% (0.02737) | 90.66th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.33% (0.02331) | 88.00th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.34% (0.06337) | 90.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.34% (0.06337) | 90.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.34% (0.06337) | 77.94th | v2 (v2022.01.01) |
References (6)
- http://cygwin.com/ml/cygwin-developers/2007-11/msg00005.html mailing-listx_refsource_MLISTExploitPatchVendor Advisory
- http://cygwin.com/ml/cygwin-developers/2007-11/msg00024.html mailing-listx_refsource_MLISTExploitVendor Advisory
- http://cygwin.com/ml/cygwin-developers/2007-11/msg00026.html mailing-listx_refsource_MLISTVendor Advisory
- http://securityreason.com/securityalert/3406 third-party-advisoryx_refsource_SREASONThird Party Advisory
- http://www.securityfocus.com/archive/1/484153/100/0/threaded mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/26557 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://cygwin.com/ml/cygwin-developers/2007-11/msg00005.html | mailing-listx_refsource_MLISTExploitPatchVendor Advisory | |
| http://cygwin.com/ml/cygwin-developers/2007-11/msg00024.html | mailing-listx_refsource_MLISTExploitVendor Advisory | |
| http://cygwin.com/ml/cygwin-developers/2007-11/msg00026.html | mailing-listx_refsource_MLISTVendor Advisory | |
| http://securityreason.com/securityalert/3406 | third-party-advisoryx_refsource_SREASONThird Party Advisory | |
| http://www.securityfocus.com/archive/1/484153/100/0/threaded | mailing-listx_refsource_BUGTRAQThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/bid/26557 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.