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CVE-2026-9435

Totolink A8000RU Web Management cstecgi.cgi setQosCfg os command injection

Published: May 25, 2026Updated: May 26, 2026 Sources: CVE List NVDCWE-77
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
1.9%
Top 22.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. The affected element is the function setQosCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Performing a manipulation of the argument enable results in os command injection. Remote exploitation of the attack is possible. The exploit is now public 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

A8000RUTotolinkNetworking Infrastructure
totolinkcommercialTWNetworking Infrastructureaka totolink corp.

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://vuldb.com/vuln/365416
vuldb.com
https://vuldb.com/vuln/365416/cti
vuldb.com
https://vuldb.com/submit/813908
vuldb.com
and 2 more references View all →

Timeline

Published
May 25, 2026
Last Updated
May 26, 2026

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