Critical severity9.8NVD Advisory· Published Dec 24, 2025· Updated Apr 15, 2026

CVE-2019-25249

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.

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Affected products

devolo/dLAN 500 AV Wireless+llm-create
Range: = 3.1.0-1.0-1

Patches

Vulnerability mechanics

References

www.devolo.comnvd
www.exploit-db.com/exploits/46325nvd
www.zeroscience.mk/en/vulnerabilities/ZSL-2019-5508.phpnvd

News mentions

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