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CVE-2021-41298: ECOA BAS controller is vulnerable to insecure direct object references that occur when the application provide

45
This month
HIGH 8.8MITIGATEMITIGATEMITIGATE

CVE-2021-41298 is a high-severity flaw (CVSS 8.8) affecting ecs router controller-ecs firmware, riskbuster firmware, riskterminator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ECOA BAS controller is vulnerable to insecure direct object references that occur when the application provides direct access to objects based on user-supplied input. As a result of this vulnerability, attackers with general user's privilege can remotely bypass authorization and access the hidden resources in the system and execute privileged functionalities.

Why this priority

  • High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score8.8 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.9% (top 41%)
CISA exploited listNo
WeaknessCWE-284, CWE-639
Published2021-09-30
Last modified2026-06-17
Publisher (CNA): TWCERT/CC · Vendor: ecoa

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

ecoa ecs router controller-ecs firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
ecoa riskbuster firmware MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
ecoa riskterminator MITIGATE
Affected: all versions
Fixed in: no fixed release known
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy riskterminator || rpm -q riskterminator || riskterminator --version
No fixed or unaffected release known
Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-41298?

ecs router controller-ecs firmware: mitigate or apply the listed mitigation; riskbuster firmware: mitigate or apply the listed mitigation; riskterminator: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-41298 being exploited?

CVE-2021-41298 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-41298 affect?

CVE-2021-41298 affects ecs router controller-ecs firmware, riskbuster firmware, riskterminator. Severity is high (CVSS 8.8). ECOA BAS controller is vulnerable to insecure direct object references that occur when the application provides direct access to objects based on user-supplied input. As a result of this vulnerability, attackers with general user's privileg

How urgent is CVE-2021-41298?

Priority 45/100. High severity

Related CVEs

References

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