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8 vulnerabilities found for TL-WR841N v14 by TP-Link Systems Inc.
CVE-2026-9105 (GCVE-0-2026-9105)
Vulnerability from nvd – Published: 2026-06-29 16:05 – Updated: 2026-06-29 16:18
VLAI
Title
Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/faq/5152/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < V14_260518
(custom)
|
Credits
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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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds read
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/faq/5033/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < 0.9.1 4.19
(custom)
|
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CVE-2026-3227 (GCVE-0-2026-3227)
Vulnerability from nvd – Published: 2026-03-13 21:38 – Updated: 2026-07-01 17:31
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
6 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR802N v4 |
Affected:
0 , < V4_260304
(custom)
|
|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < V14_260303
(custom)
|
|
| TP Link Systems Inc. | TL-WR840N v6 |
Affected:
0 , < V6_260304
(custom)
|
Credits
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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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < 250908
(custom)
|
Credits
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CVE-2026-9105 (GCVE-0-2026-9105)
Vulnerability from cvelistv5 – Published: 2026-06-29 16:05 – Updated: 2026-06-29 16:18
VLAI
Title
Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/faq/5152/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < V14_260518
(custom)
|
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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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds read
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/download/tl-wr… | patch |
| https://www.tp-link.com/us/support/faq/5033/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < 0.9.1 4.19
(custom)
|
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CVE-2026-3227 (GCVE-0-2026-3227)
Vulnerability from cvelistv5 – Published: 2026-03-13 21:38 – Updated: 2026-07-01 17:31
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
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
6 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR802N v4 |
Affected:
0 , < V4_260304
(custom)
|
|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < V14_260303
(custom)
|
|
| TP Link Systems Inc. | TL-WR840N v6 |
Affected:
0 , < V6_260304
(custom)
|
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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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | TL-WR841N v14 |
Affected:
0 , < 250908
(custom)
|
Credits
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