Vulnerability · Published Feb 8, 2026 · Assigned by VulDB
CVE-2026-2138Tenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in TX9 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 57% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.8%top 42.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in Tenda TX9 up to 22.03.02.10_multi. Affected is the function sub_42D03C of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.
Affected products (as reported)
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-344773 | Tenda TX9 SetStaticRouteCfg sub_42D03C buffer overflow vdb-entry, technical-description
- VDB-344773 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #747249 | Tenda TX9 V22.03.02.10_multi Buffer Overflow third-party-advisory
- https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/SetStaticRouteCfg.md related
- https://github.com/MRAdera/IoT-Vuls/blob/main/tenda/tx9%20pro/SetStaticRouteCfg.md#poc exploit
- https://www.tenda.com.cn/ product