CVE-2021-26777

CRITICAL

Circutor Compact Dc-s Basic Firmware - Buffer Overflow

Title source: rule

Description

Buffer overflow vulnerability in function SetFirewall in index.cgi in CIRCUTOR COMPACT DC-S BASIC smart metering concentrator Firwmare version CIR_CDC_v1.2.17, allows attackers to execute arbitrary code.

References (1)

Core 1

Core References

Exploit, Third Party Advisory x_refsource_misc

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

Scores

CVSS v3 9.8

EPSS 0.0098

EPSS Percentile 76.9%

Attack Vector NETWORK

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

Details

CWE

CWE-120

Status published

Products (1)

circutor/compact_dc-s_basic_firmware 1.2.17

Published Dec 02, 2021

Tracked Since Feb 18, 2026