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7.4
Tenda AC5 Router Allows Remote Code Execution via Malformed Network Request
CVE-2026-4906
Summary
A security issue in Tenda AC5 routers allows an attacker to execute malicious code on the device by sending a specially crafted network request. This could allow an attacker to take control of the router. We recommend updating to the latest firmware version to fix this issue.
Original title
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 manipulat...
Original description
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.
nvd CVSS2.0
9.0
nvd CVSS3.1
8.8
nvd CVSS4.0
7.4
Vulnerability type
CWE-119
Buffer Overflow
CWE-121
Stack-based Buffer Overflow
Published: 27 Mar 2026 · Updated: 27 Mar 2026 · First seen: 27 Mar 2026