CVE-2026-5854 - Vulnerability Analysis

Overview

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

Severity & Score

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

• https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_160/README.md
• https://vuldb.com/submit/791276
• https://vuldb.com/vuln/356380
• https://vuldb.com/vuln/356380/cti
• https://www.totolink.net/

Social Media Activity(1 post)

TheHackerWire

@thehackerwire

Apr 9, 2026

🔴 CVE-2026-5854 - Critical (9.8) A vulnerability was detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this issue is the function setWiFiEasyCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument merge results in ... 🔗 https://www.thehackerwire.com/vulnerability/CVE-2026-5854/ #CVE #vulnerability #infosec #cybersecurity #security #Tenda #patchstack

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