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9.4
CVE-2026-86149: Tenda CP3 router allows remote command execution
CVE-2026-86149 · published 1 month ago
Summary
The Tenda CP3 router (firmware version 27.5.57.101) can be tricked into running unauthorized system commands by sending specially crafted network requests. This could let an attacker take control of the device from anywhere on the internet. Update the router to the latest firmware or apply the vendor's security patch as soon as possible.
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 | cp3 | 27.5.57.101 |
Original advisory text
Tenda CP3 NetCheckPing.cpp os command injection
A weakness has been identified in Tenda CP3 27.5.57.101. This issue affects some unknown processing of the file Net/NetCheckPing.cpp. This manipulation of the argument interface_name/host causes os command injection. The attack can be initiated remotely.
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-77Command Injection
CWE-78OS Command Injection
Timeline
Published5 Sep 2026
Updated3 Oct 2026
First seen5 Sep 2026
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