Vulnerability · Published Aug 14, 2026 · Assigned by VulDB

CVE-2026-19792Tenda G0 httpd web management interface module setPortMapping buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in G0 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 58% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.9%top 41.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in Tenda G0 up to 20260625. Impacted is the function setPortMapping of the file /goform/module of the component httpd web management interface. Performing a manipulation of the argument portMappingServer/porMappingtInternal/portMappingExternal results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

Affected products (as reported)

Vendor	Product	Versions
Tenda	G0	20260625

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

References

VDB-389758 | Tenda G0 httpd web management interface module setPortMapping buffer overflow vdb-entry, technical-description
VDB-389758 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
CVE-2026-19792 | CVE Analysis and Report third-party-advisory
Submit #868929 | Tenda G0 Tenda G0 Buffer Overflow third-party-advisory
https://github.com/lipenghai/iot_bug/blob/main/Tenda/G0/3.md exploit
https://www.tenda.com.cn/ product