CVE-2021-26777
CRITICALCVSS 9.8/10EPSS 2.44%
Last modified
CVE-2021-26777 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.44% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Circutor | Compact Dc-S Basic Firmware | 1.2.17 |
References
- https://github.com/Ell0/plc_concentrator_vulns/Exploit, Third Party Advisory
- https://github.com/Ell0/plc_concentrator_vulns/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-26777?
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.
How severe is CVE-2021-26777?
CVE-2021-26777 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.44% probability of exploitation in the next 30 days.
How do I fix CVE-2021-26777?
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-2021-26777?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST