Vulnerability · Published Aug 30, 2026 · Assigned by VulDB

CVE-2026-82542Tenda HG10 Boa Web Server formIPv6Routing buffer overflow

Critical 10.0

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 66% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical

Exploit odds (30 days)1.1%top 34.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A weakness has been identified in Tenda HG10 300001138. Affected by this issue is the function formIPv6Routing of the file /boaform/admin/formIPv6Routing of the component Boa Web Server. This manipulation of the argument destNet causes buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.

Affected products (as reported)

Vendor	Product	Versions
Tenda	HG10	300001138

Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R

References

VDB-397058 | Tenda HG10 Boa Web Server formIPv6Routing buffer overflow vdb-entry, technical-description
VDB-397058 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-82542 | CVE Analysis and Report third-party-advisory
Submit #888876 | Tenda HG10 HG7_HG9_HG10re_300001138 Denial of Service third-party-advisory
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/bof-formIPv6Route-destNt.md exploit
https://www.tenda.com.cn/ product