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CVE-2026-6156

Totolink A7100RU CGI cstecgi.cgi setIpQosRules os command injection

Published: Apr 13, 2026Updated: Apr 27, 2026 Sources: CVE List NVD BDUCWE-77
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.8%
Top 24.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setIpQosRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument Comment leads to os command injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-77CWE-78

Affected Products

A7100RUTotolinkNetworking Infrastructure
A7100RUTOTOLinkNetworking Infrastructure
totolinkcommercialTWNetworking Infrastructureaka totolink corp.

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_197/README.md
github.com
https://vuldb.com/submit/793681
vuldb.com
https://vuldb.com/vuln/357036
vuldb.com
and 2 more references View all →

Timeline

Published
Apr 13, 2026
Last Updated
Apr 27, 2026

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