Vulnerability · Published Sep 6, 2026 · Assigned by VulDB
CVE-2026-86165Tenda HG10 formURL buffer overflow
Critical 9.8
In plain English
A critical-severity buffer overflow in HG10 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.1%top 33.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in Tenda HG10 300001138. This vulnerability affects the function formURL of the file /boaform/admin/formURL. Performing a manipulation of the argument Keywd/urlFQDN results in buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used.
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-399304 | Tenda HG10 formURL buffer overflow vdb-entry, technical-description
- VDB-399304 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-86165 | CVE Analysis and Report third-party-advisory
- Submit #895583 | Tenda HG10 HG7_HG9_HG10re_300001138 Denial of Service third-party-advisory
- Submit #895594 | Tenda HG10 HG7_HG9_HG10re_300001138 Denial of Service (Duplicate) third-party-advisory
- https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/bof-formURL-keywd.md exploit
- https://www.tenda.com.cn/ product