High severity7.5NVD Advisory· Published Jun 25, 2021· Updated Jun 17, 2026
CVE-2021-33536
CVE-2021-33536
Description
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.
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Affected products
3- Weidmüller/IE-WL(T)-BL-AP-CL-XXv5Range: IE-WL-BL-AP-CL-EU (2536600000)
- Weidmüller/IE-WL(T)-VL-AP-CL-XXv5Range: IE-WL-VL-AP-BR-CL-EU (2536680000)
Patches
Vulnerability mechanics
References
1- cert.vde.com/en-us/advisories/vde-2021-026nvdThird Party Advisory
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