CVE-2025-9014

Null Pointer Dereference Vulnerability on TL-WR841N

Published Jan 15, 2026 CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed
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.

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 tl-wr841n Firmware
Weaknesses CWE-476
CPEs cpe:2.3:h:tp-link:tl-wr841n:14:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:tl-wr841n_firmware:*:*:*:*:*:*:*:*
Vendors & Products Tp-link tl-wr841n Firmware
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
First Time appeared Tp-link
Tp-link tl-wr841n
Tp-link wr841n
Vendors & Products Tp-link
Tp-link tl-wr841n
Tp-link wr841n
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 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.
Title Null Pointer Dereference Vulnerability on TL-WR841N
Weaknesses CWE-20
References
Metrics cvssV4_0

{'score': 6.3, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
TPLink
Published
Updated
Jan 15, 2026, 6:26 PM
Reserved
Aug 13, 2025, 8:37 PM
Status
Analyzed
Published
Jan 15, 2026, 6:16 PM
Modified
Jun 17, 2026, 10:08 AM