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.

Metrics

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

No data.

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Vendors Products
References
Link Providers
https://www.tp-link.com/en/support/download/tl-wr841n/v14/#Firmware cve-icon cve-icon
https://www.tp-link.com/us/support/download/tl-wr841n/v14/#Firmware cve-icon cve-icon
https://www.tp-link.com/us/support/faq/5270/ cve-icon cve-icon
History

Fri, 28 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
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.
Title Pre-Authentication NULL Pointer Dereference in UPnP SOAP State Variable Query Processing in TP-Link TL-WR841N
Weaknesses CWE-476
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-08-28T20:19:03.475Z

Reserved: 2026-08-19T15:49:30.548Z

Link: CVE-2026-76650

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T22:16:53.380

Modified: 2026-08-28T22:16:53.380

Link: CVE-2026-76650

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-29T00:00:15Z