CVE-2026-76650

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

Published Aug 28, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tl-wr841n V14
Vendors & Products Tp-link
Tp-link tl-wr841n V14
Type Values Removed Values Added
Metrics ssvc

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

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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Aug 31, 2026, 6:37 PM
Reserved
Aug 19, 2026, 3:49 PM
Status
Deferred
Published
Aug 28, 2026, 10:16 PM
Modified
Sep 1, 2026, 8:50 PM