CVE-2026-9105

MEDIUM CVSS 4.0: 6.8 EPSS 0.80%
Updated Jul 01, 2026
TP-Link
Parameter Value
CVSS 6.8 (MEDIUM)
Affected Versions before 14_260518
Fixed In 14_260518
Type CWE-787 (Out-of-bounds Write), CWE-121 (Stack-based Buffer Overflow)
Vendor TP-Link
Public PoC No

An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process. Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot.

Attack Parameters

Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products 2

Configuration From (including) Up to (excluding)
Tp-Link Tl-Wr841n_Firmware
cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*
14_260518
Tp-Link Tl-Wr841n
cpe:2.3:h:tp-link:tl-wr841n:14:*:*:*:*:*:*:*