CVE-2026-86166: Buffer Overflow in Tenda HG10
Description
A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formWanRedirect of the file /boaform/formWanRedirect of the component Boa Web Server. Executing a manipulation of the argument if can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
CVSS v4.0
Score 8.7high
Affected software
Tenda
HG10
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Tenda HG10 300001138 involves a buffer overflow in the formWanRedirect function of the Boa Web Server component. An attacker can remotely trigger this by manipulating the 'if' argument, potentially leading to memory corruption. The vulnerability has a CVSS 4.0 base score of 8.7, indicating high severity. Public exploit code exists, but there is no evidence of exploitation in the wild. No vendor advisory or patch information is provided.
Potential Impact
Successful exploitation could allow remote attackers to cause a buffer overflow, potentially leading to denial of service or arbitrary code execution with limited privileges. The vulnerability affects the network-facing web server component, increasing the risk of remote exploitation.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. In the absence of an official fix, consider limiting network exposure of the affected device and monitoring for suspicious activity targeting the web server interface.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-05T10:32:03.953Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a9ce70dacd9273b49310202
Added to database: 09/06/2026, 04:07:41 UTC
Last enriched: 09/14/2026, 23:40:05 UTC
Last updated: 10/21/2026, 13:22:15 UTC
Views: 89
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