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CVE-2026-7140

Totolink A8000RU CGI cstecgi.cgi CsteSystem os command injection

Published: Apr 27, 2026Updated: Apr 27, 2026 Sources: CVE List NVD
NVD MITRE
9.8CVSS
CRITICAL

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function CsteSystem of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument HTTP leads to os command injection. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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

Weaknesses

CWE-77CWE-78

Affected Products

A8000RU
Totolink

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

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://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_315/README.md
github.com
https://vuldb.com/submit/801110
vuldb.com
https://vuldb.com/vuln/359739
vuldb.com
and 2 more references View all →

Timeline

Published
Apr 27, 2026
Last Updated
Apr 27, 2026

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