CVE-2026-63587 SMS Password Authorization Bypass via Failed Attempt Counter
An attacker can disable SMS password protection by triggering failed login attempts, allowing unauthorized command execution and configuration changes on Weidmueller industrial routers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-63587?
CVE-2026-63587 is a high-severity authentication bypass vulnerability in Weidmueller Interface IE-SR-2TX-WL-4G-EU, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-288
Which versions are affected by CVE-2026-63587?
How do I fix CVE-2026-63587?
No fix has been published for CVE-2026-63587 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-63587 being exploited?
There is no known exploitation of CVE-2026-63587 in the wild and no public exploit code.
Sources
Also known as GHSA-j64q-jhwc-69jc.