Quick answers
- Is CVE-2026-19792 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19792 being exploited in the wild.
- How severe is CVE-2026-19792?
- High severity, with a CVSS score of 8.8, published 14 August 2026.
- Which products and versions are affected?
- Tenda G0 up to 20260625.
- Is there a fix for CVE-2026-19792?
- 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-2026-19792 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-19792?
- Check whether you run Tenda G0 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 buffer overflow vulnerability exists in the setPortMapping function of the Tenda G0 httpd web management interface (/goform/module). The vulnerability stems from unsafe use of sprintf() to write attacker-controlled parameters (portMappingServer, porMappingtInternal, portMappingExternal) into a fixed 256-byte stack buffer without length validation. An attacker can send a specially crafted HTTP request with oversized values for these parameters to overflow the buffer. The attack is network-reachable and does not require authentication. Successful exploitation allows arbitrary code execution on the device. Public exploits have been released.
Affected products
- Tenda G0 up to 20260625
Timeline
- 2026-08-14: disclosed
- exploited: Public exploit released