CVE-2026-63586: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in Weidmueller Interface IE-SR-2TX-WL
Description
CVE-2026-63586 is a critical OS command injection vulnerability in the Weidmueller Interface IE-SR-2TX-WL device. The web-based management interface uses a modified uhttpd server with CGI shell scripts that improperly handle the HTTP Basic Authentication username. The username is taken directly from the Authorization header without sanitization and inserted into a shell command executed via system(). An unauthenticated attacker with network access can submit a crafted username containing shell metacharacters to execute arbitrary commands with root privileges.
CVSS v4.0
Score 9.3critical
Affected software
Weidmueller Interface
IE-SR-2TX-WL
Weidmueller Interface
IE-SR-2TX-WL-4G-EU
Weidmueller Interface
IE-SR-2TX-WL-4G-US-V
pkg:github/weidmueller/interface-ie-sr-2tx-wlRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability arises from improper neutralization of special elements in the HTTP Basic Authentication username field in the Weidmueller Interface IE-SR-2TX-WL device. The username is injected directly into a shell command string executed by the system() function in the CGI shell scripts of the modified uhttpd server. This allows an unauthenticated remote attacker to escape the intended command context and execute arbitrary OS commands with root privileges by submitting a specially crafted username containing shell metacharacters.
Potential Impact
An unauthenticated attacker with network access to the device can execute arbitrary commands with root privileges, leading to full compromise of the affected device. This can result in complete control over the device, unauthorized access to sensitive data, disruption of device functionality, and potential pivoting to other network resources.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Users should monitor the vendor's advisory for updates and apply any official fixes once released. Until then, restrict network access to the management interface to trusted sources only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERTVDE
- Date Reserved
- 2026-07-17T06:47:50.712Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a8d5b63acd9273b49f36564
Added to database: 08/25/2026, 09:07:47 UTC
Last enriched: 09/10/2026, 06:52:27 UTC
Last updated: 10/09/2026, 06:48:18 UTC
Views: 56
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