CVE-2026-76650
Pre-Authentication NULL Pointer Dereference in UPnP SOAP State Variable Query Processing in TP-Link TL-WR841N
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 28, 2026
- Updated
- Aug 31, 2026
- Reserved
- Aug 19, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | 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 | TPLink |
Weaknesses
- CWE-476 NULL pointer dereference
Affected Products
| Product | Versions |
|---|---|
TL-WR841N v14TP-Link System Inc. |
|
References
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