CVE-2026-7151

HIGH

Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow

Title source: cna
STIX 2.1

Description

A vulnerability was determined in Tenda HG3 2.0. Impacted is the function formUploadConfig of the file /boaform/formIPv6Routing. This manipulation of the argument destNet causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.

References (5)

Core 5
Core References
Vdb Entry, Technical Description vdb-entry technical-description
VDB-359750 | Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow
https://vuldb.com/vuln/359750
Signature, Permissions Required signature permissions-required
VDB-359750 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/359750/cti
Third Party Advisory third-party-advisory
Submit #802058 | Tenda HG3 N300 Wi-Fi xPON ONT HARD_VERSION=V2.0 , Version: 300003070 dos
https://vuldb.com/submit/802058
Product product
https://www.tenda.com.cn/

Scores

CVSS v3 8.8
EPSS 0.0063
EPSS Percentile 45.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-119 CWE-121
Status published
Products (2)
Tenda/HG3 2.0
tenda/hg3_firmware 300003070
Published Apr 27, 2026
Tracked Since Apr 28, 2026