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CVE-2026-5977 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 9, 2026

Totolink A7100RU - Command Injection

Published: April 9, 2026Updated: April 9, 2026Remote Exploitable

Overview

Totolink A7100RU 7.4cu.2313_b20191024 contains a command injection caused by manipulation of the "wifiOff" argument in /cgi-bin/cstecgi.cgi CGI Handler, letting remote attackers execute OS commands, exploit requires no special privileges.

Severity & Score

Severity: Critical

CVSS Score: 9.8

EPSS Score: 89.2%(Probability of exploitation in next 30 days)

Impact

Remote attackers can execute arbitrary OS commands, potentially leading to full system compromise.

Mitigation

Update to the latest version or apply vendor patches addressing this issue.

References

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Apr 10, 2026

🔴 CVE-2026-5977 - Critical (9.8) A weakness has been identified in Totolink A7100RU 7.4cu.2313_b20191024. This impacts the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument wifiOff can lead to os comma... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-5977/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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Related Resources

Details

CVE ID: CVE-2026-5977
Severity: Critical
CVSS Score: 9.8
Type: command_injection
Status: new
EPSS: 89.2%
Social Posts: 1

CWE

CWE-77

CVSS Metrics

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

EPSS Score

89.2%Probability of exploitation in the next 30 days