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CVE-2021-41293 (GCVE-0-2021-41293)

Vulnerability from cvelistv5 – Published: 2021-09-30 10:40 – Updated: 2024-09-16 19:41
VLAI Shadowserver Previdian
Title
ECOA BAS controller - Path Traversal-3
Summary
ECOA BAS controller suffers from a path traversal vulnerability, causing arbitrary files disclosure. Using the specific POST parameter, unauthenticated attackers can remotely disclose arbitrary files on the affected device and disclose sensitive and system information.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version CPE status
ECOA ECS Router Controller ECS (FLASH) Unknown: next of 0 , < unspecified (custom)
guessed Create a notification for this product.
ECOA RiskBuster Terminator E6L45 Unknown: next of 0 , < unspecified (custom)
guessed Create a notification for this product.
ECOA RiskBuster System RB 3.0.0 Unknown: next of 0 , < unspecified (custom)
guessed Create a notification for this product.
ECOA RiskBuster System TRANE 1.0 Unknown: next of 0 , < unspecified (custom)
guessed Create a notification for this product.
ECOA Graphic Control Software Unknown: next of 0 , < unspecified (custom)
guessed Create a notification for this product.
ECOA SmartHome II E9246 Unknown: next of 0 , < unspecified (custom)
guessed Create a notification for this product.
ECOA RiskTerminator Unknown: next of 0 , < unspecified (custom)
guessed Create a notification for this product.
Date Public
2021-09-30 00:00
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 8d91d7ad-2cb8-46fd-9422-98a3da4e0730

Vulnerability ID: CVE-2021-41293

Status: Confirmed

Status Updated: 2026-09-06 00:00 UTC

Exploited: Yes

Characteristics
Severity: 75.0
Timestamps
First Seen: 2023-10-15
Asserted: 2023-10-15
Last Seen: 2026-09-06
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: ECOA / ECOA Building Automation System | Class: other-software | Severity: High (CVSS 7.5) | IoT: yes | In CISA KEV: no | Honeypot connections on 2026-09-06: 40
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 3
Iot yes
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 2
Vendor ECOA
30D Avg 1
90D Avg 1
Product ECOA Building Automation System
Cisa Kev no
Connections 40
Observation Date 2026-09-06
Vulnerability Class CVSS
Vulnerability Score 7.5
Vulnerability Severity High
References
Created: 2026-07-01 05:54 UTC | Updated: 2026-09-08 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d46cff69-483e-48b0-8cd0-5906d5cd8fc7

Vulnerability ID: CVE-2021-41293

Status: Confirmed

Status Updated: 2025-06-20 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-06-20
Asserted: 2025-06-20
Scope
Notes: KEVIntel entry: ECOA BAS controller - Path Traversal-3 | Affected: ECOA / ECS Router Controller ECS (FLASH), RiskBuster Terminator E6L45, RiskBuster System RB 3.0.0, RiskBuster System TRANE 1.0, Graphic Control Software, SmartHome II E9246, RiskTerminator | CVSS: 7.5 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title ECOA BAS controller - Path Traversal-3
Vendor ECOA
Product ECS Router Controller ECS (FLASH), RiskBuster Terminator E6L45, RiskBuster System RB 3.0.0, RiskBuster System TRANE 1.0, Graphic Control Software, SmartHome II E9246, RiskTerminator
Added Date 2025-06-20T00:00:00.000Z
Cvss Score 7.5
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-23 11:12 UTC | Updated: 2026-06-23 11:12 UTC
Show details on NVD website
To clipboard 

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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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