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7.4

Tenda HG9 Device Can Be Crashed by Malicious Network Traffic

CVE-2026-2910
Summary

A bug in the Tenda HG9 device's network settings can be exploited by an attacker to cause the device to crash, potentially disrupting internet access. This vulnerability can be triggered from anywhere on the network, and it's already been used by hackers. To protect your network, update your Tenda HG9 device with the latest security patch as soon as possible.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software
VendorProductAffected versionsFix available
tenda hg9_firmware 300001138 –
Original title
A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6. Executing a manipulation of the argument pingAddr can lead to stack-based buffe...
Original description
A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6. Executing a manipulation of the argument pingAddr can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been published and may be used.
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: 22 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026