A NULL
pointer dereference vulnerability exists in TL-WR841N v14 in the UPnP service when processing SOAP action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly.







Successful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.

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.

The EPSS score is 0.00179.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
TP-Link System Inc. TL-WR841N v14 unaffected
Version Status Constraints
0 affected < TL-WR841N(US)_V14_4.19 Build 260820 Rel.33478
0 affected < TL-WR841N(EU)_V14_4.19 Build 260821 Rel.56588

No data.

No data.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

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

Tue, 01 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tl-wr841n V14
Vendors & Products Tp-link
Tp-link tl-wr841n V14

Mon, 31 Aug 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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 action requests. A specially crafted SOAP action request containing unexpected XML content may cause the UPnP daemon to terminate unexpectedly. Successful exploitation may result in a denial-of-service condition affecting UPnP functionality until the service is restarted or the device is rebooted.
Title Pre-Authentication NULL Pointer Dereference in UPnP SOAP Action Request 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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-08-31T18:37:30.759Z

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

Link: CVE-2026-76649

cve-icon Vulnrichment

Updated: 2026-08-31T18:37:26.829Z

cve-icon NVD

Status : Deferred

Published: 2026-08-28T22:16:53.250

Modified: 2026-09-01T20:50:58.753

Link: CVE-2026-76649

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-01T14:17:04Z

Weaknesses