Is CVE-2026-35499 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-35499 being exploited in the wild.

How severe is CVE-2026-35499?

Critical severity, with a CVSS score of 9.1, published 20 October 2026.

Which products and versions are affected?

TOTOLINK X2000r TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327.

Is there a fix for CVE-2026-35499?

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-2026-35499 attacked?

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

Am I affected by CVE-2026-35499?

Check whether you run TOTOLINK X2000r 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-2026-35499: Totolink X2000R OS command injection in formWsc

CVE-2026-35499 · Severity: critical · CVSS 9.1 · Published 2026-10-20

The Totolink X2000R is a budget gigabit home router used for network connectivity and administration. An authenticated attacker can inject arbitrary operating system commands through the web administration interface, leading to complete compromise of the router including access to traffic and configuration data. An exploit requires valid login credentials but no additional user interaction to trigger.

Technologies: TOTOLINK X2000r. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-35499 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-35499 being exploited in the wild.
How severe is CVE-2026-35499?: Critical severity, with a CVSS score of 9.1, published 20 October 2026.
Which products and versions are affected?: TOTOLINK X2000r TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327.
Is there a fix for CVE-2026-35499?: 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-2026-35499 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-35499?: Check whether you run TOTOLINK X2000r 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 boa web server's formWsc() function when processing the peerRptPin HTTP POST parameter. After authentication, the unsanitized peerRptPin value is passed directly to system() calls without escaping, allowing arbitrary shell command execution. The vulnerability is reachable via both the iwpriv and echo code paths regardless of configuration state.

Affected products

Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327

Timeline

2026-10-20: disclosed

References

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2387

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