Vulnerability · Published Oct 2, 2026 · Assigned by VulDB

CVE-2026-104610Tenda HG7/HG9/HG10 Boa Web Server formLoopBack boaGetVar stack-based overflow

Critical 10.0

In plain English

A critical-severity stack 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 0.6% (higher than 51% of all known vulnerabilities).

Severity (CVSS 3.1)10.0Critical

Exploit odds (30 days)0.6%top 48.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A security vulnerability has been detected in Tenda HG7, HG9 and HG10 300001138_en_xpon. This impacts the function boaGetVar of the file /boaform/formLoopBack of the component Boa Web Server. Such manipulation of the argument Ethtype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.

Affected products (as reported)

Vendor	Product	Versions
Tenda	HG7	300001138_en_xpon
Tenda	HG9	300001138_en_xpon
Tenda	HG10	300001138_en_xpon

Weakness: CWE-121, 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-412917 | Tenda HG7/HG9/HG10 Boa Web Server formLoopBack boaGetVar stack-based overflow vdb-entry, technical-description
VDB-412917 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-104610 | CVE Analysis and Report third-party-advisory
Submit #962541 | Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon Stack-based Buffer Overflow third-party-advisory
https://github.com/Expl0rer-Ct/CVE/issues/1 exploit, issue-tracking
https://www.tenda.com.cn/ product