What’s Vulnerable › Vulnerabilities

CVE-2019-25249: devolo dLAN 500 AV Wireless+ 3.1.0-1 Remote Code Execution via htmlmgr

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-24 · updated 2026-06-17
• Weakness: CWE-266

Description

devolo dLAN 500 AV Wireless+ 3.1.0-1 contains an authentication bypass vulnerability that allows attackers to enable hidden services through the htmlmgr CGI script. Attackers can enable telnet and remote shell services, reboot the device, and gain root access without a password by manipulating system configuration parameters.

Affected products

• devolo AG dLAN 550 duo+ Starter Kit: 500 AV Wireless+ 3.1.0-1

References

• https://www.devolo.com
• https://www.exploit-db.com/exploits/46325
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5508.php
• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5508.php

Get alerted when CVE-2019-25249 or the next vulnerability affects your stack