CVE-2026-6138

CRITICAL 9.8

Totolink A7100RU CGI cstecgi.cgi setAccessDeviceCfg os command injection

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

A flaw has been found in Totolink A7100RU 7.4cu.2313_b20191024. The impacted element is the function setAccessDeviceCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mac causes os command injection. The attack can be initiated remotely. The exploit has been published and may be used.

CWE	CWE-78 CWE-77
Vendor	totolink
Product	a7100ru
Published	Apr 13, 2026
Last Updated	Apr 13, 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/357002 vuldb.com: https://vuldb.com/vuln/357002/cti vuldb.com: https://vuldb.com/submit/792980 github.com: https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_191/README.md totolink.net: https://www.totolink.net/

Credits

🔍 LtzHuster (VulDB User)