KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders
Published Mar 17, 2019
7.8
HIGHCVSS 3.0
EPSS 1.38%
Description
KioWare Server version 4.9.6 and older installs by default to "C:\kioware_com" with weak folder permissions granting any user full permission "Everyone: (F)" to the contents of the directory and it's sub-folders. In addition, the program installs a service called "KWSService" which runs as "Localsystem", this will allow any user to escalate privileges to "NT AUTHORITY\SYSTEM" by substituting the service's binary with a malicious one.
Affected products
No data.
- ≤ 4.9.6
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/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
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.38% (0.01375) | 71.02th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.38% (0.01375) | 68.37th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.82% (0.00816) | 72.63th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.16% (0.00163) | 54.24th | v3 (v2023.03.01) |
| Mar 10, 2024 | 0.16% (0.00163) | 51.91th | v3 (v2023.03.01) |
| May 12, 2023 | 0.14% (0.00139) | 48.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00145) | 48.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.19% (0.02189) | 80.98th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.19% (0.02189) | 79.16th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.19% (0.02189) | 57.93th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.36% (0.05363) | 79.74th | v1 |
| Jan 6, 2022 | 5.36% (0.05363) | 79.54th | v1 |
| Sep 1, 2021 | 5.36% (0.05363) | 88.35th | v1 |
| Apr 14, 2021 | 5.36% (0.05363) | 0.00th | v1 |
References (5)
- http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md x_refsource_MISC
- https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update x_refsource_CONFIRMPatchVendor Advisory
- https://www.exploit-db.com/exploits/46093/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.kioware.com/patch.aspx x_refsource_CONFIRMPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/151031/KioWare-Server-4.9.6-Privilege-Escalation.html | x_refsource_MISCExploitThird Party AdvisoryVDB Entry | |
| https://github.com/active-labs/Advisories/blob/master/2019/ACTIVE-2019-002.md | x_refsource_MISC | |
| https://m.kioware.com/news/kioware-press-releases/kioware_server_security_patch_update | x_refsource_CONFIRMPatchVendor Advisory | |
| https://www.exploit-db.com/exploits/46093/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry | |
| https://www.kioware.com/patch.aspx | x_refsource_CONFIRMPatchVendor Advisory |
Change history (0)
No recorded changes yet.