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Totolink A8000RU CVE-2026-7125

| EUVD-2026-25843 HIGH
OS Command Injection (CWE-78)
2026-04-27 VulDB
Command Injection
8.9
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

8
Re-analysis Queued
Apr 27, 2026 - 18:37 vuln.today
cvss_changed
PoC Detected
Apr 27, 2026 - 18:36 vuln.today
Public exploit code
Analysis Generated
Apr 27, 2026 - 13:30 vuln.today
Severity Changed
Apr 27, 2026 - 13:22 NVD
CRITICAL HIGH
CVSS changed
Apr 27, 2026 - 13:22 NVD
9.8 (CRITICAL) 8.9 (HIGH)
EUVD ID Assigned
Apr 27, 2026 - 13:00 euvd
EUVD-2026-25843
Analysis Generated
Apr 27, 2026 - 13:00 vuln.today
CVE Published
Apr 27, 2026 - 12:45 nvd
HIGH 8.9

DescriptionNVD

A vulnerability was identified in Totolink A8000RU 7.1cu.643_b20200521. Affected by this issue is the function setWiFiEasyCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument merge leads to os command injection. The attack may be initiated remotely. The exploit is publicly available and might be used.

AnalysisAI

OS command injection in Totolink A8000RU 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the 'merge' parameter in the setWiFiEasyCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists on GitHub (Litengzheng/vuldb_new2), enabling trivial exploitation against internet-facing devices. …

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RemediationAI

Within 24 hours: Identify all Totolik A8000RU devices in your environment and document firmware versions; isolate internet-facing instances or restrict network access to trusted administrative IPs only. Within 7 days: Contact Totolik support to determine if firmware updates or patches are available; implement network segmentation to limit router access; monitor for suspicious activity on affected devices (unexpected processes, outbound connections). …

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CVE-2026-7125 vulnerability details – vuln.today
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