CVE-2021-33531

WEIDMUELLER: WLAN devices affected by Hard-coded Credentials vulnerability

Description

In Weidmueller Industrial WLAN devices in multiple versions an exploitable use of hard-coded credentials vulnerability exists in multiple iw_* utilities. The device operating system contains an undocumented encryption password, allowing for the creation of custom diagnostic scripts. An attacker can send diagnostic scripts while authenticated as a low privilege user to trigger this vulnerability.

Remediation

Solution:

  • For IE-WL(T)-BL-AP-CL-XX versions V1.16.21 (Build 21010513) and greater are fixed. For IE-WL(T)-VL-AP-CL-XX versions V1.11.13 (Build 21010513) and greater are fixed.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.18%
Third-Party Advisory vde.com
Affected: Weidmüller IE-WL(T)-BL-AP-CL-XX
Affected: Weidmüller IE-WL(T)-VL-AP-CL-XX
Published at:
Updated at:

References

Link Tags
https://cert.vde.com/en-us/advisories/vde-2021-026 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-33531?
CVE-2021-33531 has been scored as a high severity vulnerability.
How to fix CVE-2021-33531?
To fix CVE-2021-33531: For IE-WL(T)-BL-AP-CL-XX versions V1.16.21 (Build 21010513) and greater are fixed. For IE-WL(T)-VL-AP-CL-XX versions V1.11.13 (Build 21010513) and greater are fixed.
Is CVE-2021-33531 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-33531 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-33531?
CVE-2021-33531 affects Weidmüller IE-WL(T)-BL-AP-CL-XX, Weidmüller IE-WL(T)-VL-AP-CL-XX.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.