SMS Password Authorization Bypass via Failed Attempt Counter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-288.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Weidmueller Interface | IE-SR-2TX-WL-4G-EU | 1.67 to before 1.74 | 1.74 | Patch available | CNA |
| Weidmueller Interface | IE-SR-2TX-WL-4G-US-V | 1.67 to before 1.74 | 1.74 | Patch available | CNA |
- IE-SR-2TX-WL-4G-EU VendorWeidmueller Interface Affected 1.67 to before 1.74 Fixed in 1.74 Patch available CNA
- IE-SR-2TX-WL-4G-US-V VendorWeidmueller Interface Affected 1.67 to before 1.74 Fixed in 1.74 Patch available CNA
Remediation
- Fix · CNA IE-SR-2TX-WL-4G-EU (Weidmueller Interface) Fixed in 1.74
- Fix · CNA IE-SR-2TX-WL-4G-US-V (Weidmueller Interface) Fixed in 1.74
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Weidmueller Interface IE-SR-2TX-WL-4G-EU, IE-SR-2TX-WL-4G-US-V 1.74
2 records Highest priority Priority MEDIUM 2 MEDIUM
Other records, highest priority first
- TI-2026-45268 Unauthenticated Remote Code Execution via Shell Injection in Web Management InterfacePriority MEDIUM 50
Timeline
- 2026-10-02 Threatist record created from CVE-2026-63587
- 2026-10-03 Alias added: GHSA-j64q-jhwc-69jc
References
More Weidmueller Interface vulnerabilities
- TI-2026-45268 Unauthenticated Remote Code Execution via Shell Injection in Web Management Interface CVSS 4.0CRITICAL 9.3
- TI-2026-13755 SQL injection via unauthenticated GetGridData endpoint CVSS 4.0CRITICAL 9.3
Sources
- CVE-2026-63587 · CVE Program
- CVE-2026-63587 · NVD
- FIRST EPSS
- GHSA-j64q-jhwc-69jc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences