CVE-2021-41291ECOA BAS controller - Path Traversal-1
- 7.5HighCVSS base score
- 82.7%Exploitation in 30 daysEPSS · top 0.3% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
Description
ECOA BAS controller suffers from a path traversal content disclosure vulnerability. Using the GET parameter in File Manager, unauthenticated attackers can remotely disclose directory content on the affected device.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Nuclei template for it.
Show the exploits1
Nuclei templates1 template
- ECOA Building Automation System - Directory Traversal Content Disclosure (Nuclei template) (opens in a new tab)
http/cves/2021/CVE-2021-41291.yamlSeverity high
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By twcert
- 15 days later
· 15 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| twcertCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 82.7% · top 0.3% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
ECOA · ECS Router Controller ECS (FLASH)
- unknown next of 0 – < unspecified
ECOA · RiskBuster Terminator E6L45
- unknown next of 0 – < unspecified
ECOA · RiskBuster System RB 3.0.0
- unknown next of 0 – < unspecified
ECOA · RiskBuster System TRANE 1.0
- unknown next of 0 – < unspecified
ECOA · Graphic Control Software
- unknown next of 0 – < unspecified
- unknown next of 0 – < unspecified
- unknown next of 0 – < unspecified
What to do
Solution: Contact tech support from ECOA.
References
References1
- https://www.twcert.org.tw/tw/cp-132-5127-3cbd3-1.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-28321 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-41291)Record last updated .