CVE-2026-10137: Totolink X2000R stack-based buffer overflow in boa formUpload

CVE-2026-10137 · Severity: critical · CVSS 9.1 · Published 2026-10-20

The Totolink X2000R is a budget gigabit home router used to provide network connectivity and WiFi. A stack-based buffer overflow in its web administration interface allows an authenticated attacker to execute arbitrary code by sending a specially crafted HTTP request, potentially giving them full control of the router.

Technologies: TOTOLINK X2000r. Vendors: TOTOLINK.

Quick answers

Is CVE-2026-10137 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-10137 being exploited in the wild.
How severe is CVE-2026-10137?
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-2026-10137?
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-2026-10137 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-10137?
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 formUpload() function when processing file uploads. The vulnerability requires prior authentication via the /boafrm/formLogin interface and is triggered through a specially crafted HTTP POST request to /boafrm/formUpload. Successful exploitation leads to arbitrary code execution with router privileges.

Affected products

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

Timeline

  • 2026-10-20: disclosed

References

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