CVE-2017-16806 in the critical feed json
The Process function in RemoteTaskServer/WebServer/HttpServer.cs in Ulterius before 1.9.5.0 allows HTTP server directory traversal.
published 2017-11-13 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-7982
- cvss
- 7.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 90.9%
- EPSS 90.9% chance of exploitation in 30 days, percentile 99.8%
- public exploits
- 2
- Metasploit, Exploit-DB, plus a Nuclei check
Summary
The Process function in RemoteTaskServer/WebServer/HttpServer.cs in Ulterius before 1.9.5.0 allows HTTP server directory traversal.
Patch / fix
Timeline
- First public exploit (EDB-43141)
- Published
Exploit prediction
90.91% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit auxiliary/admin/http/ulterius_file_download Ulterius Server File Download Vulnerability metasploit auxiliary, normal rank
- EDB-43141 Ulterius Server < 1.9.5.0 - Directory Traversal remote, 2017-11-13
- Nuclei template Ulterius Server < 1.9.5.0 - Directory Traversal nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/Ulterius/server/commit/770d1821de43cf1d0a93c79025995bdd812a76ee
issue-tracking
-
exploit-db.com
/exploits/43141/
exploit, third-party-advisory, vdb-entry
Sources
- CVE List CVE-2017-16806
- NVD CVE-2017-16806
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.