Quick answers
- Is CVE-2026-40627 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-40627 being exploited in the wild.
- How severe is CVE-2026-40627?
- 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-2026-40627?
- 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-2026-40627 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-40627?
- 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 formWsc function of the boa web server on Totolink X2000R. The targetAPSsid HTTP POST parameter is processed by an incomplete escape function that fails to neutralize newline characters, allowing an attacker to break out of the intended iwpriv command and execute arbitrary shell commands. Authentication to the web interface is required; the vulnerability is triggered via a crafted HTTP POST request.
Affected products
- Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327
Timeline
- 2026-10-20: disclosed