Quick answers
- Is CVE-2026-36792 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-36792 being exploited in the wild.
- How severe is CVE-2026-36792?
- Informational severity, with a CVSS score of 7.5, published 9 June 2026.
- Which products and versions are affected?
- Tenda W3 Wireless Router v1.0.0.3(2204).
- Is there a fix for CVE-2026-36792?
- 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-2026-36792 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-36792?
- Check whether you run Tenda W3 Wireless Router 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 vulnerability exists in the formWifiRadioSet CGI handler of the Tenda W3 router due to improper validation of the 'wl_radio' parameter. The handler retrieves this parameter via websGetVar and passes it to an internal function (FUN_004601a8), where it is converted to an integer using atoi() and used as an index for an array (local_414[local_438 * 10 + iVar1]). By providing an excessively large integer value for 'wl_radio', an attacker can trigger a buffer overread or stack overflow. This can be exploited via a network-reachable HTTP request without authentication, leading to a device crash or reboot (Denial of Service).
Affected products
- Tenda (Shenzhen Tenda Technology Co., Ltd) W3 Wireless Router v1.0.0.3(2204)
Timeline
- 2026-03-15: other: CVE request submitted to MITRE
- 2026-06-06: disclosed: Public disclosure
- 2026-06-09: advisory: NVD published date