CVE-2026-14208
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk2th percentile - higher than 2% of all known CVEs
Summary
Remote Utilities Host <=7.7.3.0 sets insecure ACLs on all DLL files in the installation directory, granting FULL CONTROL to the Everyone group. A Windows service running as SYSTEM loads DLLs from this directory. A race window exists when the service is stopped, during which a local unprivileged attacker can replace a DLL with a malicious payload, which executes as SYSTEM upon service restart.
Risk Assessment
A local attacker can gain full control of the system with SYSTEM privileges, leading to complete machine compromise.
Recommendation
Immediately update Remote Utilities Host to the latest version that fixes the ACL permissions, and restrict local access to the system.
Related vulnerabilities
- CVE-2026-120283Critical
A vulnerability was identified in Linksys E8450 version 1.2.00.360516 in the strcpy function of /www/cgi-bin/portal.cgi. Manipulation of the hidden_timezone argument leads to a stack-based buffer overflow. The attack can be executed remotely, and the vendor did not respond to the disclosure.
- CVE-2026-120282Critical
A vulnerability was determined in WAVLINK WN536AX6-A version V260507 in the host_black function of /protocol.csp. Manipulation of the mac argument causes OS command injection. The exploit has been publicly disclosed and remote exploitation is possible.
- CVE-2026-120281Critical
A vulnerability was found in WAVLINK WN536AX6-A version V260507 in the OpenVPN Handler component, in the strcpy function of /protocol.csp. Manipulation of the openvpn_ip argument results in a stack-based buffer overflow. The exploit has been made public and the attack may be launched remotely.
- CVE-2026-120280Critical
A vulnerability has been found in WAVLINK WN536AX6-A version V260507 in the WireGuard component, in the wireguard_cli_group handler of /protocol.csp. Manipulation of the group_id/group_name arguments leads to OS command injection. The exploit has been disclosed publicly and the attack may be initiated remotely.
- CVE-2026-120279Critical
A flaw has been found in WAVLINK WN536AX6-A version V260507 in the openvpn_cli Handler component, in an unknown function of /protocol.csp. Manipulation of the file_id argument can lead to OS command injection. The exploit has been published and the attack can be launched remotely.
- CVE-2026-120277Critical
A vulnerability was detected in WAVLINK WN536AX6-A (version V260507_2.0.0) in the sub_41a1d8 function of the /bin/ioos file, related to the WireGuard CLI group handler. Manipulation of the group_name argument leads to OS command injection. The issue can be exploited remotely and a public exploit is already available.
- CVE-2026-120276Critical
A weakness was identified in WAVLINK WN536AX6-A (version V260507_2.0.0) in the sub_416760 function of the /bin/ioos file, within the web management interface component. Manipulation of the group_name argument causes OS command injection. The attack can be initiated remotely and the exploit has been made publicly available.
- CVE-2026-120240Critical
A vulnerability was found in the WAVLINK WN553X1-B device (version V260403_2.0.0) in the sub_41A748 function of /bin/ioos, part of the WireGuard CLI Group Handler. Manipulating the group_id/group_name arguments can lead to OS command injection. The attack can be performed remotely and the exploit has been publicly disclosed.
- CVE-2026-120239Critical
A vulnerability was found in WAVLINK WN553X1-B (V260403_2.0.0) in the sub_419DA8 function of /bin/ioos, within the WireGuard CLI Handler component. Manipulating the file_id argument leads to OS command injection. The attack can be carried out remotely and the exploit has been made public.
- CVE-2026-120238Critical
A vulnerability has been found in WAVLINK WN553X1-B (260403_2.0.0) in the sub_4162A8 function of /bin/ioos, within the ovpn_file Handler component. Manipulating the file_id argument leads to OS command injection. The attack can be executed remotely and the exploit has been disclosed to the public.
Original NVD description (English source)
Remote Utilities Host <=7.7.3.0 sets insecure ACLs on all DLL files in the installation directory (C:\Program Files (x86)\Remote Utilities - Host\), granting FULL CONTROL (F) to the built-in Everyone group (BUILTIN\Everyone, S-1-1-0). A Windows service running as NT AUTHORITY\SYSTEM loads DLLs from this directory. The DLLs are file-locked at runtime, but a race window exists when the service is stopped (e.g. during a software update or following a crash), during which a local unprivileged attacker can replace a DLL with a malicious payload. Upon service restart, the payload executes as NT AUTHORITY\SYSTEM. The DLL confirmed as actively loaded during testing is libasset32.dll. Additional DLLs in the same directory (eventmsg.dll, libcodec32.dll, vp8encoder.dll, vp8decoder.dll, webmvorbisdecoder.dll, webmvorbisencoder.dll, webmmux.dll) share identical insecure permissions.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS