Quick answers
- Is CVE-2026-85110 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-85110 being exploited in the wild.
- How severe is CVE-2026-85110?
- High severity, with a CVSS score of 8.8, published 3 September 2026.
- Which products and versions are affected?
- Tenda HG10 HG7_HG9_HG10re_300001138.
- Is there a fix for CVE-2026-85110?
- 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-2026-85110 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-85110?
- Check whether you run Tenda HG10 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 Boa web server component of Tenda HG10 firmware version HG7_HG9_HG10re_300001138, specifically in the formWlanSetup function handling of the ssid parameter. The vulnerable code uses unsafe string operations (strcpy) to copy user-supplied input into a fixed-size buffer without length validation. An unauthenticated remote attacker can submit an HTTP POST request to /boaform/formWlanSetup with an overlong ssid value, causing a stack or heap buffer overflow. Successful exploitation results in denial-of-service (device crash) and potentially arbitrary code execution depending on memory layout and runtime protections. No patch status is currently indicated.
Affected products
- Tenda HG10 HG7_HG9_HG10re_300001138
Timeline
- 2026-09-03: disclosed