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High severity7.2NVD Advisory· Published Jun 25, 2021· Updated Jun 17, 2026

CVE-2021-33539

CVE-2021-33539

Description

In Weidmueller Industrial WLAN devices in multiple versions an exploitable authentication bypass vulnerability exists in the hostname processing. A specially configured device hostname can cause the device to interpret selected remote traffic as local traffic, resulting in a bypass of web authentication. An attacker can send authenticated SNMP requests to trigger this vulnerability.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Weidmueller/Industrial WLANllm-fuzzy
  • Weidmüller/IE-WL(T)-BL-AP-CL-XXv5
    Range: IE-WL-BL-AP-CL-EU (2536600000)
  • Weidmüller/IE-WL(T)-VL-AP-CL-XXv5
    Range: IE-WL-VL-AP-BR-CL-EU (2536680000)

Patches

Vulnerability mechanics

References

1

News mentions

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