CVE-2021-34820 json
Web Path Directory Traversal in the Novus HTTP Server.
published 2021-07-19 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21467
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.0%
- EPSS 4.0% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
Web Path Directory Traversal in the Novus HTTP Server. The Novus HTTP Server is affected by the Directory Traversal for Arbitrary File Access vulnerability. A remote, unauthenticated attacker using an HTTP GET request may be able to exploit this issue to access sensitive data. The issue was discovered in the NMS (Novus Management System) software through 1.51.2
Exploit prediction
4.00% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/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
-
seclists.org
/fulldisclosure/2021/Jul/20
mailing-list, third-party-advisory
-
packetstormsecurity.com
/files/163453/Novus-Management-System-Directory-Traversal-Cross-Site-Scripting.html
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-34820
- NVD CVE-2021-34820
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