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CVE-2026-40621

Quick assessment

Affected
ELECOM CO.,LTD. WRC-BE72XSD-B
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.

ELECOM WRC-BE72XSD-B是日本ELECOM公司的一款无线路由器。 ELECOM多款产品存在安全漏洞，该漏洞源于无需身份验证即可访问特定URL，可能导致设备在无认证情况下被操作。以下产品受到影响：WRC-BE72XSD-B、WRC-BE72XSD-BA、WRC-BE65QSD-B和WRC-W702-B。

AI Predicted 5.3 Difficulty: Easy EPSS 0.72% · P52

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 4

VendorProduct Version RangeStatus
ELECOM CO.,LTD. WRC-BE65QSD-B v1.1.0 and earlier affected
ELECOM CO.,LTD. WRC-BE72XSD-B v1.1.1 and earlier affected
ELECOM CO.,LTD. WRC-BE72XSD-BA v1.1.1 and earlier affected
ELECOM CO.,LTD. WRC-W702-B v1.1.0 and earlier affected
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I. Basic Information for CVE-2026-40621

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
ELECOM wireless LAN access point devices do not require authentication to access some specific URLs. The affected product may be operated without authentication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
ELECOM多款产品 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ELECOM WRC-BE72XSD-B是日本ELECOM公司的一款无线路由器。 ELECOM多款产品存在安全漏洞，该漏洞源于无需身份验证即可访问特定URL，可能导致设备在无认证情况下被操作。以下产品受到影响：WRC-BE72XSD-B、WRC-BE72XSD-BA、WRC-BE65QSD-B和WRC-W702-B。
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
ELECOM CO.,LTD. WRC-BE72XSD-B v1.1.1 and earlier -
ELECOM CO.,LTD. WRC-BE72XSD-BA v1.1.1 and earlier -
ELECOM CO.,LTD. WRC-BE65QSD-B v1.1.0 and earlier -
ELECOM CO.,LTD. WRC-W702-B v1.1.0 and earlier -

II. Public POCs for CVE-2026-40621

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III. Intelligence Information for CVE-2026-40621

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Vendor Advisories for CVE-2026-40621 (2)

Same Patch Batch · ELECOM CO.,LTD. · 2026-05-13 · 7 CVEs total

CVE-2026-25107 ELECOM WRC和ELECOM WAB 安全漏洞
CVE-2026-42950 ELECOM WAB 代码问题漏洞
CVE-2026-42062 ELECOM多款产品 操作系统命令注入漏洞
CVE-2026-42961 ELECOM多款产品 安全漏洞
CVE-2026-42948 ELECOM多款产品 跨站脚本漏洞
CVE-2026-35506 ELECOM WRC 操作系统命令注入漏洞

IV. Related Vulnerabilities

Same product: WRC-BE72XSD-B
Same vendor: ELECOM CO.,LTD.
Same weakness: CWE-288

V. Comments for CVE-2026-40621

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