CVE-2026-63586: Weidmueller Interface Ie-Sr-2tx-Wl
Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.
The web-based management interface uses a modified uhttpd server with CGI shell scripts. The HTTP Basic Authentication username, taken directly from the Authorization header without sanitization, is inserted into a shell command string executed via the system() function. By submitting a specially crafted username containing shell metacharacters, an unauthenticated attacker with network access to the device can escape the command context and execute arbitrary commands with root privileges.
Affected products
- Weidmueller Interface Ie-Sr-2tx-Wl: from 1.52, before 1.57 (fixed in 1.57)
- 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)
Published 2026-08-25. Last modified 2026-09-03.