CVE-2025-28034

Summary

CVE-2025-28034 is a pre-authentication remote command execution vulnerability affecting multiple TOTOLINK routers, including the A800R V4.1.2cu.5137_B20200730, A810R V4.1.2cu.5182_B20201026, A830R V4.1.2cu.5182_B20201102, A950RG V4.1.2cu.5161_B20200903, A3000RU V5.9c.5185_B20201128, and A3100R V4.1.2cu.5247_B20211129. This vulnerability lies in the NTPSyncWithHost function and can be exploited through the hostTime parameter without requiring valid authentication. Successful exploitation grants an attacker the ability to execute arbitrary commands with administrative privileges on the affected device. Users of these TOTOLINK router models are advised to apply the necessary patches as soon as possible to mitigate this risk.

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