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Totolink A8000RU EUVD-2026-26010

| CVE-2026-7240 HIGH
OS Command Injection (CWE-78)
2026-04-28 VulDB
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

9
PoC Detected
Apr 28, 2026 - 20:24 vuln.today
Public exploit code
Analysis Updated
Apr 28, 2026 - 08:27 vuln.today
v2 (cvss_changed)
Re-analysis Queued
Apr 28, 2026 - 08:22 vuln.today
cvss_changed
Severity Changed
Apr 28, 2026 - 08:22 NVD
CRITICAL HIGH
CVSS changed
Apr 28, 2026 - 08:22 NVD
9.8 (CRITICAL) 8.9 (HIGH)
Analysis Generated
Apr 28, 2026 - 08:01 vuln.today
EUVD ID Assigned
Apr 28, 2026 - 07:30 euvd
EUVD-2026-26010
Analysis Generated
Apr 28, 2026 - 07:30 vuln.today
CVE Published
Apr 28, 2026 - 07:15 nvd
HIGH 8.9

DescriptionNVD

A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setVpnAccountCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument User leads to os command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 allows remote unauthenticated attackers to execute arbitrary system commands via the User parameter in the setVpnAccountCfg function of /cgi-bin/cstecgi.cgi. Publicly available exploit code exists (GitHub POC), enabling immediate weaponization. …

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RemediationAI

Within 24 hours: Identify all Totolik A8000RU devices on your network and document firmware versions; immediately isolate any running 7.1cu.643_b20200521 from production networks or internet access. Within 7 days: Contact Totolik support for available firmware updates; if no patch exists, evaluate replacement with patched hardware or alternative vendors; verify no unauthorized access occurred on affected devices through log review and network monitoring. …

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EUVD-2026-26010 vulnerability details – vuln.today

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