CVE-2026-16520
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk45th percentile - higher than 45% of all known CVEs
Summary
Improper input validation and Exposure of sensitive information through data queries vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, and Genians Genian ZTNA V6.0 allows SQL Injection and Authentication Bypass. This issue affects specific versions before the indicated revisions.
Risk Assessment
An attacker could gain unauthorized access to the system and data, potentially leading to confidentiality and integrity breaches.
Recommendation
Update to the patched versions listed in the description for each product.
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)
Improper input validation and Exposure of sensitive information through data queries vulnerability in Genians Genian NAC V4.0, Genians Genian NAC V5.0, and Genians Genian ZTNA V6.0 allows SQL Injection and Authentication Bypass. This issue affects Genian NAC V4.0: from 4.0.0 before 4.0.175(Revision 150340); Genian NAC V5.0: from 5.0.0 before 5.0.65 LTS(Revision 150331), from 5.0.0 before 5.0.75 LTS(Revision 150330), from 5.0.0 before 5.0.87 Release Stable(Revision 150329), and from 5.0.0 before 5.0.88(Revision 150328); Genian ZTNA V6.0: from 6.0.0 before 6.0.26 LTS(Revision 150337), from 6.0.0 before 6.0.35 LTS(Revision 150336), from 6.0.0 before 6.0.47 Release Stable(Revision 150334), and from 6.0.0 before 6.0.48(Revision 150333).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

