Remote Code Execution Vulnerability in Pi.Alert WiFi/LAN Intruder Detector by Lei Weibau
CVE-2026-44888

9.8CRITICAL

Key Information:

Vendor

Leiweibau

Status
Pi.alert
Vendor
CVE Published:
27 May 2026

What is CVE-2026-44888?

The vulnerability in Pi.Alert allows attackers to exploit the SaveConfigFile() endpoint, which improperly handles user-supplied numeric configuration values. This lack of input validation leads to the injection of arbitrary Python code into the configuration file pialert.conf. The configuration is executed regularly by the background process via Python's exec() function, enabling unauthenticated remote code execution on default installations without any credentials, posing a significant security risk to affected systems.

Affected Version(s)

Pi.Alert < 2026-05-07

References

https://github.com/leiweibau/Pi.Alert/security/advisories...
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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