Critical severity · published Apr 13, 2026
CVE-2026-6154
Totolink A7100RU CGI cstecgi.cgi setWizardCfg os command injection
9.8
CVSS
1.8%
EPSS
No
On KEV
Description
A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. The affected element is the function setWizardCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument wizard results in os command injection. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 79% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A7
A7100RU · Totolink
7.4cu.2313_b20191024 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6154
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6154
github.com
https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_194/README.md
vuldb.com
https://vuldb.com/submit/792990
vuldb.com
https://vuldb.com/vuln/357034
vuldb.com
https://vuldb.com/vuln/357034/cti
www.totolink.net
https://www.totolink.net/
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