CVE-2026-4906: Tenda AC5 POST Request WizardHandle decodePwd stack-based overflow

Published Mar 27, 2026
·
Updated

A vulnerability was determined in Tenda AC5 15.03.06.47. The affected element is the function decodePwd of the file /goform/WizardHandle of the component POST Request Handler. Executing a manipulation of the argument WANT/WANS can lead to stack-based buffer overflow. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized.

Affected Software

3 affected components
Tenda Tenda AC5=15.03.06.47
All of the following
Tenda Ac5 Firmware=15.03.06.47
Tenda AC5=1.0

Event History

Mar 27, 2026
CVE Published
via MITRE·12:53 AM
Data Sourced
via MITRE·12:53 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:16 AM
DescriptionSeverityWeaknessAffected Software
Apr 7, 58249
Event
via FIRST·12:43 PM
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Frequently Asked Questions

1

What is the severity of CVE-2026-4906?

CVE-2026-4906 has a high severity due to its potential for exploitation through stack-based buffer overflow.

2

How do I fix CVE-2026-4906?

To fix CVE-2026-4906, update the Tenda AC5 firmware to the latest version beyond 15.03.06.47.

3

What systems are affected by CVE-2026-4906?

CVE-2026-4906 affects Tenda AC5 devices that are running firmware version 15.03.06.47.

4

What are the potential exploits for CVE-2026-4906?

Exploiting CVE-2026-4906 could allow attackers to execute arbitrary code or crash the device.

5

Is CVE-2026-4906 remotely exploitable?

Yes, CVE-2026-4906 can be exploited remotely through crafted POST requests to the affected component.

Contact

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