CVE-2026-19750

Received Received - Intake

Hard-Coded Password in Tenda CH/CP/TX3 Router Firmware

Publication date: 2026-08-13

Last updated on: 2026-08-13

Assigner: VulDB

Description

A flaw has been found in Tenda CH, CP and TX3 V21.x/V22.x/V25.x/V26.x/V27.x. Affected by this issue is some unknown functionality of the component SSH. Executing a manipulation can lead to use of hard-coded password. It is possible to launch the attack remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit has been published and may be used.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-13

Last Modified

2026-08-13

Generated

2026-08-14

AI Q&A

2026-08-14

EPSS Evaluated

N/A

NVD

CVE-2026-19750

EUVD

EUVD-2026-58487

Affected Vendors & Products

Vendor	Product	Version / Range
tenda	ch	v21.x
tenda	ch	v22.x
tenda	ch	v25.x
tenda	ch	v26.x
tenda	ch	v27.x
tenda	cp	v21.x
tenda	cp	v22.x
tenda	cp	v25.x
tenda	cp	v26.x
tenda	cp	v27.x
tenda	tx3	v21.x
tenda	tx3	v22.x
tenda	tx3	v25.x
tenda	tx3	v26.x
tenda	tx3	v27.x

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-259	The product contains a hard-coded password, which it uses for its own inbound authentication or for outbound communication to external components.
CWE-255

Attack-Flow Graph

Executive Summary

This vulnerability is in Tenda CH, CP, and TX3 routers running versions V21.x to V27.x. It involves a hard-coded password in the SSH component, allowing remote attackers to gain unauthorized access. The attack is complex but exploitable, with a published exploit available.

Detection Guidance

Detecting this vulnerability requires checking for devices running affected Tenda firmware versions with SSH enabled. Scan your network for devices with open SSH ports (22) and verify firmware versions of Tenda CH, CP, or TX3 models. Use commands like nmap -p 22 <target_IP> to check for SSH access and check device firmware via web interface or CLI.

Impact Analysis

An attacker could exploit this to gain control of your router, potentially intercepting network traffic, stealing sensitive data, or launching further attacks on connected devices. The high CVSS score indicates significant risk.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR and HIPAA requirements for data protection. Organizations may face legal penalties for non-compliance due to potential data breaches.

Mitigation Strategies

Immediately disable SSH access on affected Tenda devices if not required. Update firmware to the latest patched version from Tenda. If updates are unavailable, isolate the devices from the network or restrict SSH access via firewall rules. Monitor for unusual activity.

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