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CVE-2025-50263: Tenda AC6 Router: Malicious Data Overload Caused by Incorrect Input

CVE-2025-50263 · published 1 year ago

Summary

If an attacker sends a large amount of data to the Tenda AC6 router, it may crash or become unresponsive. This can happen when the router processes a list of parameters, allowing an attacker to potentially take control of the device. Update the router's firmware to the latest version to fix this issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
tenda	ac6_firmware	15.03.05.16_multi `cpe:2.3:o:tenda:ac6_firmware:15.03.05.16_multi:::::::*`

Original advisory text

Tenda AC6 v15.03.05.16_multi is vulnerable to Buffer Overflow in the fromSetRouteStatic function via the list parameter.

References

https://github.com/faqiadegege/IoTVuln/blob/main/tendaAC6_SetStaticRouteCfg_list... Exploit Third Party Advisory

Fix within

Internet-facing 14 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker full control

Severity

8.1 High

Exploitation

<1% chance of attack within 30 days

Type

CWE-120Classic Buffer Overflow

Timeline

Published3 Jul 2025

Updated4 Nov 2026

First seen7 Mar 2026

Sources

CVE-2025-50263 · NVD

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