CVE-2021-33536: WEIDMUELLER: WLAN devices affected by Denial-of-Service vulnerability
In Weidmueller Industrial WLAN devices in multiple versions an exploitable denial-of-service vulnerability exists in ServiceAgent functionality. A specially crafted packet can cause an integer underflow, triggering a large memcpy that will access unmapped or out-of-bounds memory. An attacker can send this packet while unauthenticated to trigger this vulnerability.
Affected Software
Remediation
Information
Event History
Frequently Asked Questions
What is the vulnerability ID for this Weidmueller Industrial WLAN devices vulnerability?
The vulnerability ID for this Weidmueller Industrial WLAN devices vulnerability is CVE-2021-33536.
What is the severity level of CVE-2021-33536?
The severity level of CVE-2021-33536 is high with a severity value of 7.5.
Which software versions are affected by CVE-2021-33536?
The affected software versions for CVE-2021-33536 are Weidmueller Ie-wl-bl-ap-cl-eu Firmware up to and including version 1.16.18, Weidmueller Ie-wlt-bl-ap-cl-eu Firmware up to and including version 1.16.18, Weidmueller Ie-wl-bl-ap-cl-us Firmware up to and including version 1.16.18, Weidmueller Ie-wlt-bl-ap-cl-us Firmware up to and including version 1.16.18, Weidmueller Ie-wl-vl-ap-br-cl-eu Firmware up to and including version 1.16.18, Weidmueller Ie-wlt-vl-ap-br-cl-eu Firmware up to and including version 1.16.18, Weidmueller Ie-wl-vl-ap-br-cl-us Firmware up to and including version 1.16.18, and Weidmueller Ie-wlt-vl-ap-br-cl-us Firmware up to and including version 1.16.18.
What is the CWE ID for CVE-2021-33536?
The CWE ID for CVE-2021-33536 is CWE-191.
How can I fix the CVE-2021-33536 vulnerability?
To fix the CVE-2021-33536 vulnerability, it is recommended to update the affected Weidmueller Industrial WLAN devices to a version that is not vulnerable.