Cyber Posture

CVE-2025-29358

HighPublic PoC

Published: 13 March 2025

Published
13 March 2025
Modified
01 August 2025
KEV Added
Patch
CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score 0.0021 43.7th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Description

Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.

Security Summary

CVE-2025-29358 is a buffer overflow vulnerability (CWE-120) in the Tenda RX3 router firmware version US_RX3V1.0br_V16.03.13.11_multi_TDE01. The flaw occurs in the handling of the firewallEn parameter via the /goform/SetFirewallCfg endpoint, which can be triggered by a specially crafted packet.

Remote attackers can exploit this vulnerability without authentication or user interaction, as indicated by the CVSS v3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (base score 7.5). Successful exploitation results in a Denial of Service (DoS) condition, potentially crashing the device and disrupting network connectivity.

Advisories reference a technical document at https://github.com/2664521593/mycve/blob/main/Tenda/RX3/tenda_rx3_bof_2.pdf (listed twice), which details the vulnerability. No specific patches or mitigation guidance are provided in the available description.

Details

CWE(s)
CWE-120

Affected Products

tenda
rx3 firmware
16.03.13.11_multi_tde01

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
Why these techniques?

Buffer overflow in unauthenticated public web endpoint (/goform/SetFirewallCfg) directly enables T1190 for remote exploitation of public-facing application; results in system crash/DoS via T1499.004 Application or System Exploitation.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

References