Is CVE-2026-7202 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-7202 being exploited in the wild.

How severe is CVE-2026-7202?

Critical severity, with a CVSS score of 9.8, published 28 April 2026.

Which products and versions are affected?

TOTOLINK A8000RU 7.1cu.643_b20200521.

Is there a fix for CVE-2026-7202?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-7202 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-7202?

Check whether you run TOTOLINK A8000RU at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-7202: Totolink A8000RU command injection in setWiFiWpsStart

CVE-2026-7202 · Severity: critical · CVSS 9.8 · Published 2026-04-28

A vulnerability exists in the Totolink A8000RU wireless router, a device used to provide internet connectivity and Wi-Fi. An attacker can remotely take full control of the router by sending a specially crafted request to the device's management interface. This could lead to the theft of sensitive data, interception of network traffic, or a complete disruption of internet services for the home or business.

Technologies: TOTOLINK A8000RU. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-7202 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-7202 being exploited in the wild.
How severe is CVE-2026-7202?: Critical severity, with a CVSS score of 9.8, published 28 April 2026.
Which products and versions are affected?: TOTOLINK A8000RU 7.1cu.643_b20200521.
Is there a fix for CVE-2026-7202?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-7202 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-7202?: Check whether you run TOTOLINK A8000RU at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability exists in the 'setWiFiWpsStart' function within the '/cgi-bin/cstecgi.cgi' component of the Totolink A8000RU router (firmware version 7.1cu.643_b20200521). The root cause is improper neutralization of the 'wscDisabled' argument, which is concatenated into a system command string using 'snprintf' and subsequently executed via 'execv()' through the 'CsteSystem' function. A remote, unauthenticated attacker can exploit this by sending a crafted POST request containing shell metacharacters (e.g., backticks) in the JSON payload. Successful exploitation allows for arbitrary command execution on the underlying Linux operating system. Public exploits (PoC) are available.

Affected products

Totolink A8000RU 7.1cu.643_b20200521

Timeline

2026-04-28: advisory: Initial disclosure by VulDB/NVD
2026-04-28: disclosed: Public PoC released on GitHub

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.