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CVE-2026-63587— SMS Password Authorization Bypass via Failed Attempt Counter

Quick assessment

Affected
Weidmueller Interface IE-SR-2TX-WL-4G-EU
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.

Weidmueller Interface IE-SR-2TX-WL-4G-EU是德国Weidmueller Interface公司的一款支持4G通信的工业路由器。 Weidmueller Interface IE-SR-2TX-WL-4G-EU和IE-SR-2TX-WL-4G-US-V 1.67版本至1.74之前版本存在授权问题漏洞，该漏洞源于SMS密码验证失败重试机制不当，连续5次失败后自动禁用密码授权，可能导致未经身份验证的攻击者发送无效密码绕过认证，从而造成有限的配置篡改、信息泄露和潜在完全丧失可

CVSS 8.6 · High EPSS 0.41% · P34

Affected Version Matrix 2

VendorProduct Version RangeStatus
Weidmueller Interface IE-SR-2TX-WL-4G-EU 1.67< 1.74 affected
Weidmueller Interface IE-SR-2TX-WL-4G-US-V 1.67< 1.74 affected
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I. Basic Information for CVE-2026-63587

Vulnerability Information
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Vulnerability Title
SMS Password Authorization Bypass via Failed Attempt Counter
Source: CVE Program / CVE List V5
Vulnerability Description
The SMS control function of IE-SR-2TX-WL-4G devices can require a password for SMS commands via the 'Enable Password Authorization' setting. The device increments a retry counter on each failed SMS password attempt; after 5 consecutive failed attempts, SMS password authorization is automatically disabled. An unauthenticated remote attacker who is able to send SMS messages to the device can deliberately trigger this by submitting 5 or more invalid passwords, after which subsequent SMS commands are executed without requiring a password, resulting in potential limited configuration tampering, limited information leakage and potentially full loss of availability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
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
Weidmueller Interface IE-SR-2TX-WL-4G-EU 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Weidmueller Interface IE-SR-2TX-WL-4G-EU是德国Weidmueller Interface公司的一款支持4G通信的工业路由器。 Weidmueller Interface IE-SR-2TX-WL-4G-EU和IE-SR-2TX-WL-4G-US-V 1.67版本至1.74之前版本存在授权问题漏洞，该漏洞源于SMS密码验证失败重试机制不当，连续5次失败后自动禁用密码授权，可能导致未经身份验证的攻击者发送无效密码绕过认证，从而造成有限的配置篡改、信息泄露和潜在完全丧失可
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
Weidmueller Interface IE-SR-2TX-WL-4G-EU 1.67 ~ 1.74 -
Weidmueller Interface IE-SR-2TX-WL-4G-US-V 1.67 ~ 1.74 -

II. Public POCs for CVE-2026-63587

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III. Intelligence Information for CVE-2026-63587

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Vendor Advisories for CVE-2026-63587 (1)

IV. Related Vulnerabilities

Same vendor: Weidmueller Interface
Same weakness: CWE-288

V. Comments for CVE-2026-63587

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