Buffer Overflow Vulnerability in CIRCUTOR Smart Metering Concentrator Firmware
CVE-2021-26777

9.8CRITICAL

Key Information:

Vendor

Circutor

Status
Compact Dc-s Basic Firmware
Vendor
CVE Published:
2 December 2021

What is CVE-2021-26777?

A buffer overflow vulnerability exists in the SetFirewall function of the index.cgi file in the CIRCUTOR Compact DC-S BASIC smart metering concentrator's firmware version CIR_CDC_v1.2.17. This vulnerability enables attackers to exploit the flaw, potentially allowing them to execute arbitrary code on the affected device. Organizations using this firmware should prioritize applying security patches to mitigate the risk introduced by this vulnerability.

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References

https://github.com/Ell0/plc_concentrator_vulns/
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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