Quick answers
- Is CVE-2026-19788 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19788 being exploited in the wild.
- How severe is CVE-2026-19788?
- High severity, with a CVSS score of 8.8, published 14 August 2026.
- Which products and versions are affected?
- Tenda AC1206 15.03.06.23_multi_TD01.
- Is there a fix for CVE-2026-19788?
- 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-2026-19788 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-19788?
- Check whether you run Tenda AC1206 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 exists in the set_device_name function within the httpd web management interface (/goform/SetOnlineDevName). The vulnerable component reads an unchecked devName parameter from user input and writes it directly into a fixed 256-byte stack buffer using sprintf without length validation. An unauthenticated attacker can exploit this remotely by sending a POST request with a devName value longer than the buffer size, overwriting the stack and achieving remote code execution or denial of service. No authentication is required; the exploit is network-reachable and public. Patches are not mentioned as available.
Affected products
- Tenda AC1206 15.03.06.23_multi_TD01
Timeline
- 2026-08-14: disclosed
- other: Exploit made public