EUVD-2026-21184

| CVE-2026-5977 HIGH
2026-04-09 VulDB GHSA-vg62-g8mg-mm6p
8.9
CVSS 4.0
Share

CVSS Vector

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

4
PoC Detected
Apr 09, 2026 - 21:16 vuln.today
Public exploit code
Analysis Generated
Apr 09, 2026 - 21:00 vuln.today
EUVD ID Assigned
Apr 09, 2026 - 21:00 euvd
EUVD-2026-21184
CVE Published
Apr 09, 2026 - 20:15 nvd
HIGH 8.9

Tags

Command Injection A7100Ru

Description

A weakness has been identified in Totolink A7100RU 7.4cu.2313_b20191024. This impacts the function setWiFiBasicCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Executing a manipulation of the argument wifiOff can lead to os command injection. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks.

Analysis

Remote OS command injection in Totolink A7100RU firmware 7.4cu.2313_b20191024 allows unauthenticated attackers to execute arbitrary system commands via the wifiOff parameter in the setWiFiBasicCfg function of /cgi-bin/cstecgi.cgi. This vulnerability enables complete device compromise with high impact to confidentiality, integrity, and availability. …

Sign in for full analysis, threat intelligence, and remediation guidance.

Remediation

Within 24 hours: Identify and inventory all Totolik A7100RU devices on the network, retrieve current firmware versions via device admin interface, and isolate any running firmware 7.4cu.2313_b20191024 or earlier to a separate VLAN with restricted network access. Within 7 days: Contact Totolink support to confirm patch availability status and timelines; if no patch is available, implement network-level controls to block unauthenticated access to /cgi-bin/cstecgi.cgi via WAF or firewall rules, and disable WiFi configuration features via administrative lockdown if operationally feasible. …

Sign in for detailed remediation steps.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Priority Score

64
Low Medium High Critical
KEV: 0
EPSS: +0.9
CVSS: +44
POC: +20

Share

EUVD-2026-21184 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy