Vulnerability · Published Dec 30, 2025 · Assigned by VulDB

CVE-2025-15234Tenda M3 setInternetLanInfo formSetRemoteInternetLanInfo heap-based overflow

High 8.8

In plain English

A high-severity heap buffer overflow in M3 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.9% (higher than 87% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)2.9%top 13.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A weakness has been identified in Tenda M3 1.0.0.13(4903). Impacted is the function formSetRemoteInternetLanInfo of the file /goform/setInternetLanInfo. This manipulation of the argument portIp/portMask/portGateWay/portDns/portSecDns causes heap-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Affected products (as reported)

Vendor	Product	Versions
Tenda	M3	1.0.0.13(4903)

Weakness: CWE-122, 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-338630 | Tenda M3 setInternetLanInfo formSetRemoteInternetLanInfo heap-based overflow vdb-entry, technical-description
VDB-338630 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #725496 | Tenda M3 V1.0.0.13(4903) Heap-based Buffer Overflow third-party-advisory
https://github.com/dwBruijn/CVEs/blob/main/Tenda/setRemoteInternetLanInfo.md exploit
https://www.tenda.com.cn/ product