# CVE-2026-86148: Tenda CP3 OS command injection in SystemAsh

Source: https://junglewise.ai/threats/cve-2026-86148-tenda-cp3-os-command-injection-in-systemash  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-05. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-86148 · Severity: critical · CVSS 9.1 · Published 2026-09-05

Tenda CP3 is a network device used for connectivity and system management. A vulnerability in the SystemAsh function allows remote attackers to inject arbitrary operating system commands by manipulating the AlarmVoiceURL parameter, potentially leading to complete device compromise and lateral movement into the network.

Technologies: [Tenda CP3](https://junglewise.ai/threats/technologies/cp3). Vendors: [Tenda](https://junglewise.ai/threats/vendors/tenda).

## Quick answers

**Is CVE-2026-86148 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-86148 being exploited in the wild.

**How severe is CVE-2026-86148?** Critical severity, with a CVSS score of 9.1, published 5 September 2026.

**Which products and versions are affected?** Tenda CP3 27.5.57.101.

**Is there a fix for CVE-2026-86148?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-86148 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-86148?** Check whether you run Tenda CP3 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

This is an OS command injection vulnerability in the SystemAsh function of Apis/system.c in the Kylin component. The vulnerability exists because user-supplied input to the AlarmVoiceURL argument is not properly sanitized before being passed to system command execution. An unauthenticated remote attacker can exploit this over the network to execute arbitrary operating system commands with device privileges, achieving full system compromise.

## Affected products

- Tenda CP3 27.5.57.101

## Timeline

- 2026-09-05: disclosed

## References

- [https://vuldb.com/cve/CVE-2026-86148](https://vuldb.com/cve/CVE-2026-86148)
- [https://vuldb.com/submit/895348](https://vuldb.com/submit/895348)

## Related threats

- [Tenda CP3 privilege escalation in redirect server](https://junglewise.ai/threats/cve-2026-86153-tenda-cp3-privilege-escalation-in-redirect-server)
- [Tenda CP3 OS command injection in AutoAddWifi](https://junglewise.ai/threats/cve-2026-86152-tenda-cp3-os-command-injection-in-autoaddwifi)
- [Tenda CP3 OS command injection in Network Configuration Management](https://junglewise.ai/threats/cve-2026-86151-tenda-cp3-os-command-injection-in-network-configuration)
- [Tenda CP3 hard-coded credentials in hostapd configuration](https://junglewise.ai/threats/cve-2026-86150-tenda-cp3-hard-coded-credentials-in-hostapd-configuration)
- [Tenda CP3 OS command injection via interface_name argument](https://junglewise.ai/threats/cve-2026-86149-tenda-cp3-os-command-injection-via-interface-name-argument)