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CVE-2026-16520

Quick assessment

Affected
Genians Genian NAC V4.0
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Genians Genian NAC是韩国Genians公司的一款网络接入控制与访问管理产品。 Genians Genian NAC V4.0 4.0.0版本至4.0.175(Revision 150340)之前版本，Genian NAC V5.0 5.0.0版本至5.0.65 LTS(Revision 150331)之前版本、5.0.0版本至5.0.75 LTS(Revision 150330)之前版本、5.0.0版本至5.0.87 Release Stable(Revision 150329)之前版本

CVSS 8.7 · High EPSS 0.55% · P44

Affected Version Matrix 9

VendorProduct Version RangeStatus
Genians Genian NAC V4.0 4.0.0< 4.0.175(Revision 150340) affected
Genians Genian NAC V5.0 5.0.0< 5.0.65 LTS(Revision 150331) affected
5.0.0< 5.0.75 LTS(Revision 150330) affected
5.0.0< 5.0.87 Release Stable(Revision 150329) affected
5.0.0< 5.0.88(Revision 150328) affected
Genians Genian ZTNA V6.0 6.0.0< 6.0.26 LTS(Revision 150337) affected
6.0.0< 6.0.35 LTS(Revision 150336) affected
6.0.0< 6.0.47 Release Stable(Revision 150334) affected
6.0.0< 6.0.48(Revision 150333) affected
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I. Basic Information for CVE-2026-16520

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Genians Genian NAC 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Genians Genian NAC是韩国Genians公司的一款网络接入控制与访问管理产品。 Genians Genian NAC V4.0 4.0.0版本至4.0.175(Revision 150340)之前版本，Genian NAC V5.0 5.0.0版本至5.0.65 LTS(Revision 150331)之前版本、5.0.0版本至5.0.75 LTS(Revision 150330)之前版本、5.0.0版本至5.0.87 Release Stable(Revision 150329)之前版本
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Genians Genian NAC V4.0 4.0.0 ~ 4.0.175(Revision 150340) -
Genians Genian NAC V5.0 5.0.0 ~ 5.0.65 LTS(Revision 150331) -
Genians Genian ZTNA V6.0 6.0.0 ~ 6.0.26 LTS(Revision 150337) -

II. Public POCs for CVE-2026-16520

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 5307 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-16520

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Vendor Advisories for CVE-2026-16520 (2)

IV. Related Vulnerabilities

Same product: Genian NAC V4.0
Same vendor: Genians
Same weakness: CWE-20

V. Comments for CVE-2026-16520

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