CVE-2026-71941

Name of the Vulnerable Software and Affected Versions DrayTek VigorSwitch (affected versions not specified)

Description A buffer overflow exists in the diag logmail() function. The issue occurs when multiple smtpReceiver email addresses are concatenated into a fixed-size buffer without verifying the remaining space. A remote attacker with valid administrative credentials for the web management interface can provide crafted input to trigger this flaw, leading to a denial of service or potential arbitrary command execution.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.