CVE-2021-33536

Summary

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

VendorProductVersion RangeStatus
WeidmüllerIE-WL(T)-BL-AP-CL-XXIE-WL-BL-AP-CL-EU (2536600000) <= V1.16.18 (Build 18081617)affected
WeidmüllerIE-WL(T)-BL-AP-CL-XXIE-WLT-BL-AP-CL-EU (2536650000) <= V1.16.18 (Build 18081617)affected
WeidmüllerIE-WL(T)-BL-AP-CL-XXIE-WL-BL-AP-CL-US (2536660000) <= V1.16.18 (Build 18081617)affected
WeidmüllerIE-WL(T)-BL-AP-CL-XXIE-WLT-BL-AP-CL-US (2536670000) <= V1.16.18 (Build 18081617)affected
WeidmüllerIE-WL(T)-VL-AP-CL-XXIE-WL-VL-AP-BR-CL-EU (2536680000) <= V1.11.10 (Build 18122616)affected
WeidmüllerIE-WL(T)-VL-AP-CL-XXIE-WLT-VL-AP-BR-CL-EU (2536690000) <= V1.11.10 (Build 18122616)affected
WeidmüllerIE-WL(T)-VL-AP-CL-XXIE-WL-VL-AP-BR-CL-US (2536700000) <= V1.11.10 (Build 18122616)affected
WeidmüllerIE-WL(T)-VL-AP-CL-XXIE-WLT-VL-AP-BR-CL-US (2536710000) <= V1.11.10 (Build 18122616)affected

Weaknesses

  • CWE-191: CWE-191 Integer Underflow (Wrap or Wraparound)

ADP Enrichment

CVE Program Container

Additional References

References