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6 vulnerabilities found for TL-WR841N v14 by TP-Link Systems Inc.

CVE-2026-3622 (GCVE-0-2026-3622)

Vulnerability from nvd – Published: 2026-03-26 20:34 – Updated: 2026-03-27 19:39
VLAI?
Title
Denial-of-Service Vulnerability in UPnP Component of TP Link's TL-WR841N
Summary
The vulnerability exists in the UPnP component of TL-WR841N v14, where improper input validation leads to an out-of-bounds read, potentially causing a crash of the UPnP service. Successful exploitation can cause the UPnP service to crash, resulting in a Denial-of-Service condition.  This vulnerability affects TL-WR841N v14 < EN_0.9.1 4.19 Build 260303 Rel.42399n (V14_260303) and < US_0.9.1.4.19 Build 260312 Rel. 49108n (V14_0304).
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR841N v14 Affected: 0 , < 0.9.1 4.19 (custom)
Create a notification for this product.
Credits
Md Sharafatullah Zomadder, Professor Rahamatullah Khondoker, Dept. of Business Informatics, THM University of Applied Sciences, Friedberg, Germany
Show details on NVD website
To clipboard 

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CVE-2026-3227 (GCVE-0-2026-3227)

Vulnerability from nvd – Published: 2026-03-13 21:38 – Updated: 2026-03-17 03:55
VLAI?
Title
Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N
Summary
A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command. In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing. Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.
Severity ?
8.5 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR802N v4 Affected: 0 , < V4_260304 (custom)
Create a notification for this product.
Credits
do4choo (github.com/do4choo)
Show details on NVD website
To clipboard 

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CVE-2025-9014 (GCVE-0-2025-9014)

Vulnerability from nvd – Published: 2026-01-15 17:36 – Updated: 2026-01-15 18:26
VLAI?
Title
Null Pointer Dereference Vulnerability on TL-WR841N
Summary
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.
Severity ?
6.3 (Medium)
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
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR841N v14 Affected: 0 , < 250908 (custom)
Create a notification for this product.
Credits
Justus W. Perlwitz, JWP Consulting
Show details on NVD website
To clipboard 

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CVE-2026-3622 (GCVE-0-2026-3622)

Vulnerability from cvelistv5 – Published: 2026-03-26 20:34 – Updated: 2026-03-27 19:39
VLAI?
Title
Denial-of-Service Vulnerability in UPnP Component of TP Link's TL-WR841N
Summary
The vulnerability exists in the UPnP component of TL-WR841N v14, where improper input validation leads to an out-of-bounds read, potentially causing a crash of the UPnP service. Successful exploitation can cause the UPnP service to crash, resulting in a Denial-of-Service condition.  This vulnerability affects TL-WR841N v14 < EN_0.9.1 4.19 Build 260303 Rel.42399n (V14_260303) and < US_0.9.1.4.19 Build 260312 Rel. 49108n (V14_0304).
Severity ?
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR841N v14 Affected: 0 , < 0.9.1 4.19 (custom)
Create a notification for this product.
Credits
Md Sharafatullah Zomadder, Professor Rahamatullah Khondoker, Dept. of Business Informatics, THM University of Applied Sciences, Friedberg, Germany
Show details on NVD website
To clipboard 

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CVE-2026-3227 (GCVE-0-2026-3227)

Vulnerability from cvelistv5 – Published: 2026-03-13 21:38 – Updated: 2026-03-17 03:55
VLAI?
Title
Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N
Summary
A command injection vulnerability was identified in TP-Link TL-WR802N v4, TL-WR841N v14, and TL-WR840N v6 due to improper neutralization of special elements used in an OS command. In the router configuration import function allows an authenticated attacker to upload a crafted configuration file that results in execution of OS commands with root privileges during port-trigger processing. Successful exploitation allows an authenticated attacker to execute system commands with root privileges, leading to full device compromise.
Severity ?
8.5 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR802N v4 Affected: 0 , < V4_260304 (custom)
Create a notification for this product.
Credits
do4choo (github.com/do4choo)
Show details on NVD website
To clipboard 

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CVE-2025-9014 (GCVE-0-2025-9014)

Vulnerability from cvelistv5 – Published: 2026-01-15 17:36 – Updated: 2026-01-15 18:26
VLAI?
Title
Null Pointer Dereference Vulnerability on TL-WR841N
Summary
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.
Severity ?
6.3 (Medium)
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
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR841N v14 Affected: 0 , < 250908 (custom)
Create a notification for this product.
Credits
Justus W. Perlwitz, JWP Consulting
Show details on NVD website
To clipboard 

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