CVE-2021-41290

Name: CVE-2021-41290
Creator: NVD / NIST
Published: 2021-09-30T11:15:07.357+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.25%

Last modified Jun 17, 2026

CVE-2021-41290 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. ECOA BAS controller suffers from an arbitrary file write and path traversal vulnerability. Using the POST parameters, unauthenticated attackers can remotely set arbitrary values for location and content type and gain the possibility to execute arbitrary code on the affected device.. EPSS estimates a 2.25% chance of exploitation in the next 30 days.

Description

ECOA BAS controller suffers from an arbitrary file write and path traversal vulnerability. Using the POST parameters, unauthenticated attackers can remotely set arbitrary values for location and content type and gain the possibility to execute arbitrary code on the affected device.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.25%

80.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ecoa	Ecs Router Controller-Ecs Firmware	All versions
Ecoa	Riskbuster Firmware	All versions
Ecoa	Riskterminator	All versions

References

https://www.twcert.org.tw/tw/cp-132-5126-ca315-1.htmlThird Party Advisory
https://www.twcert.org.tw/tw/cp-132-5126-ca315-1.htmlThird Party Advisory

Timeline

Published: Sep 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41290?

How severe is CVE-2021-41290?

CVE-2021-41290 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.25% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41290?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41290?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST