Vulnerability · Published Apr 27, 2026 · Assigned by VulDB
CVE-2026-7151Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in HG3 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)8.8High
Exploit odds (30 days)0.6%top 49.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-121, 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-359750 | Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow vdb-entry, technical-description
- VDB-359750 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #802058 | Tenda HG3 N300 Wi-Fi xPON ONT HARD_VERSION=V2.0 , Version: 300003070 dos third-party-advisory
- https://www.notion.so/33e0c75766a88041bd86d3810994a541 exploit
- https://www.tenda.com.cn/ product