CVE-2026-5977

CRITICAL 9.8

Totolink A7100RU CGI cstecgi.cgi setWiFiBasicCfg os command injection

CVSS Score

9.8

EPSS Score

0.9%

EPSS Percentile

76th

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 command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a7100ru
Published	Apr 9, 2026
Last Updated	Apr 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Totolink / A7100RU

7.4cu.2313_b20191024

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/356531 vuldb.com: https://vuldb.com/vuln/356531/cti vuldb.com: https://vuldb.com/submit/791823 github.com: https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_163/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHuster2 (VulDB User)