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CVE-2026-6017— Missing Authentication for Critical Function in KAON PG5298

Quick assessment

Affected
KAON PG5298A
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

KAON PG5298A是日本KAON公司的一款路由器。 KAON PG5298A 3.0.82之前版本和KAON PG5298B 4.0.82之前版本存在授权问题漏洞，该漏洞源于缺少身份验证机制，允许未认证用户查询特定端点并获取管理门户密码等敏感信息。

CVSS 7.1 · High EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1213 · Data from Information Repositories

Affected Version Matrix 2

VendorProduct Version RangeStatus
KAON PG5298A < 3.0.82 affected
KAON PG5298B < 4.0.82 affected
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I. Basic Information for CVE-2026-6017

Vulnerability Information
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Vulnerability Title
Missing Authentication for Critical Function in KAON PG5298
Source: CVE Program / CVE List V5
Vulnerability Description
Firmware in KAON PG5298A and PG5298B routers allow an unauthenticated user to query a specific endpoint and acquire sensitive information such as a password to the administrative portal.   This vulnerability has been fixed in firmware version: 3.0.82 for PG5298A and 4.0.82 for PG5298B.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/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
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
KAON PG5298A 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
KAON PG5298A是日本KAON公司的一款路由器。 KAON PG5298A 3.0.82之前版本和KAON PG5298B 4.0.82之前版本存在授权问题漏洞，该漏洞源于缺少身份验证机制，允许未认证用户查询特定端点并获取管理门户密码等敏感信息。
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
KAON PG5298A 0 ~ 3.0.82 -
KAON PG5298B 0 ~ 4.0.82 -

II. Public POCs for CVE-2026-6017

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III. Intelligence Information for CVE-2026-6017

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Security Blog Posts for CVE-2026-6017 (1)

IV. Related Vulnerabilities

Same product: PG5298A
Same vendor: KAON
Same weakness: CWE-306

V. Comments for CVE-2026-6017

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