CVE-2025-9014

MEDIUM EPSS 34.3%
Published Jan 15, 20265mo ago · Modified Jun 17, 20261w ago
6.3 CVSS 4.0
Medium
Find Similar
Published Jan 15, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

Description

A Null Pointer Dereference vulnerability exists in the referer header check of the web portal of TP-Link TL-WR841N v14, caused by improper input validation.  A remote, unauthenticated attacker can exploit this flaw and cause Denial of Service on the web portal service.This issue affects TL-WR841N v14: before 250908.

CVSS Details

Base Score
6.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
34.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-20 Improper Input Validation Validation
CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 2

VendorProductVersionRange
tp-linktl-wr841n_firmware* <250908
tp-linktl-wr841n14any

References 4

  • tp-link.com https://www.tp-link.com/en/support/download/tl-wr841n/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/jp/support/download/tl-wr841n/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/us/support/download/tl-wr841n/#Firmware
    Product
  • tp-link.com https://www.tp-link.com/us/support/faq/4894/
    PatchVendor Advisory

Remediation

  • tp-link.com https://www.tp-link.com/us/support/faq/4894/
    PatchVendor Advisory