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Totolink A8000RU EUVD-2026-25713

| CVE-2026-7037 HIGH
OS Command Injection (CWE-78)
2026-04-26 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 - 18:52 vuln.today
cvss_changed
PoC Detected
Apr 27, 2026 - 18:50 vuln.today
Public exploit code
Analysis Generated
Apr 26, 2026 - 12:30 vuln.today
Severity Changed
Apr 26, 2026 - 12:22 NVD
CRITICAL HIGH
CVSS changed
Apr 26, 2026 - 12:22 NVD
9.8 (CRITICAL) 8.9 (HIGH)
EUVD ID Assigned
Apr 26, 2026 - 12:00 euvd
EUVD-2026-25713
Analysis Generated
Apr 26, 2026 - 12:00 vuln.today
CVE Published
Apr 26, 2026 - 11:45 nvd
HIGH 8.9

DescriptionNVD

A security flaw has been discovered in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument pptpPassThru results in os command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

OS command injection in Totolink A8000RU firmware 7.1cu.643_b20200521 enables remote unauthenticated attackers to execute arbitrary system commands via the pptpPassThru parameter in the setVpnPassCfg function. Public exploit code exists on GitHub, dramatically lowering the barrier to exploitation. …

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RemediationAI

Within 24 hours: Identify all Totolik A8000RU devices in your environment using network scanning tools and asset management systems, prioritize internet-facing instances for immediate isolation. Within 7 days: Contact Totolik technical support to confirm patch availability and timeline; check for firmware versions newer than 7.1cu.643_b20200521 as interim mitigation. …

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EUVD-2026-25713 vulnerability details – vuln.today
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