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8.7

Tenda AC10 Routers Can Be Crashed by Malicious Password Changes

CVE-2026-5550 · published 7 months ago
Summary

A bug in the Tenda AC10's password change feature on certain routers can be exploited remotely, potentially causing the device to crash. This affects multiple devices. To fix this, update to a newer version of the router's firmware, if available.

Original advisory text
A vulnerability was identified in Tenda AC10 16.03.10.10_multi_TDE01. This affects the function fromSysToolChangePwd of the file /bin/httpd. The manipulation leads to stack-based buffer overflow. T...
A vulnerability was identified in Tenda AC10 16.03.10.10_multi_TDE01. This affects the function fromSysToolChangePwd of the file /bin/httpd. The manipulation leads to stack-based buffer overflow. The attack may be initiated remotely. Multiple endpoints might be affected.
References
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
8.7 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-119Buffer Overflow
CWE-121Stack-based Buffer Overflow
Timeline
Published5 Apr 2026
Updated4 Nov 2026
First seen5 Apr 2026
Sources
CVE-2026-5550 · NVD
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