CVE-2026-86165

Tenda HG10 formURL buffer overflow

State: Published
Severity: 9.3 Critical
Published: Sep 6, 2026
Updated: Sep 8, 2026
Reserved: Sep 5, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	9.3 Critical	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P	VulDB
3.1	9.8 Critical	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	VulDB
3.0	9.8 Critical	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R	VulDB
2.0	10.0 High	AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-120 Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
HG10Tenda	300001138Affected

References

VDB-399304 | Tenda HG10 formURL buffer overflowvdb-entrytechnical-description
VDB-399304 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-86165 | CVE Analysis and Reportthird-party-advisory
Submit #895583 | Tenda HG10 HG7_HG9_HG10re_300001138 Denial of Servicethird-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.mdexploit
https://www.tenda.com.cn/product

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