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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-76650

Pre-Authentication NULL Pointer Dereference in UPnP SOAP State Variable Query Processing in TP-Link TL-WR841N

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Status
Published
Published
Updated
Assigning organization
TPLink

Description

A NULL pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP state variable query requests. A specially crafted SOAP query may trigger unexpected termination or instability of the process hosting the UPnP service. Successful exploitation may result in a denial-of-service condition affecting UPnP discovery, state query, or related management functionality until the affected process is restarted or the device is rebooted.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

TP-Link System Inc. TL-WR841N v14

Default version status: unaffected

  • 0 to < TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478affected
  • 0 to < TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588affected

References