CVE-2017-16806
HighPublic exploitThe Process function in RemoteTaskServer/WebServer/HttpServer.cs in Ulterius before 1.9.5.0 allows HTTP server directory traversal.
Published Nov 13, 2017 · Updated Jul 8, 2026
Key Facts
Patch immediately- CVE-2017-16806 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Ulterius Server.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 91% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS (30-day exploit likelihood)
91%
Higher than 99.8% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-16806 brief as a PDF
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Description
The Process function in RemoteTaskServer/WebServer/HttpServer.cs in Ulterius before 1.9.5.0 allows HTTP server directory traversal.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Ulterius ServerUlterius | 1.5.6.0, 1.8.0.0 | n/a |
Timeline
Publicly disclosed
Nov 13, 2017
Last updated
Jul 8, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
FAQ
Common Questions.
The Process function in RemoteTaskServer/WebServer/HttpServer.cs in Ulterius before 1.9.5.0 allows HTTP server directory traversal.
Affected: Ulterius Server versions 1.5.6.0, 1.8.0.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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