Is CVE-2026-41222 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-41222 being exploited in the wild.

How severe is CVE-2026-41222?

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-2026-41222?

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-2026-41222 attacked?

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

Am I affected by CVE-2026-41222?

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-2026-41222: TOTOLINK X2000R stack-based buffer overflow in boa formParentControl

CVE-2026-41222 · Severity: critical · CVSS 9.1 · Published 2026-10-20

The TOTOLINK X2000R is a budget home router used for network connectivity. A stack-based buffer overflow in its web administration interface allows an authenticated attacker to crash the device or execute arbitrary code by sending a specially crafted HTTP request with excessively long URL parameters. This could give an attacker complete control over the router and the networks it serves.

Technologies: TOTOLINK X2000r. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-41222 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-41222 being exploited in the wild.
How severe is CVE-2026-41222?: 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-2026-41222?: 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-2026-41222 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-41222?: 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

A stack-based buffer overflow (CWE-121) exists in the boa web server's formParentControl function, which handles parental control URL filtering. The vulnerable code uses strcpy() without bounds checking to copy user-supplied URL values from HTTP POST parameters into a fixed 256-byte stack buffer. An authenticated attacker can trigger the overflow by submitting a urlNum parameter followed by oversized url1, url2, etc. POST parameters, leading to stack corruption and arbitrary code execution.

Affected products

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

Timeline

2026-10-20: disclosed

References

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2392

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