What’s Vulnerable › Vulnerabilities
CVE-2026-63587: SMS Password Authorization Bypass via Failed Attempt Counter
- Severity: high (CVSS 8.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-25 · updated 2026-09-03
- Weakness: CWE-288
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.
Affected products
- Weidmueller Interface IE-SR-2TX-WL-4G-EU: from 1.67 before 1.74 — fixed in 1.74
- Weidmueller Interface IE-SR-2TX-WL-4G-US-V: from 1.67 before 1.74 — fixed in 1.74
How to fix
Upgrade to a fixed version: Weidmueller Interface IE-SR-2TX-WL-4G-EU 1.74; Weidmueller Interface IE-SR-2TX-WL-4G-US-V 1.74. Check the vendor advisory for mitigations.
References
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