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42 vulnerabilities found for tl-wr840n_firmware by tp-link
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-2023-39471 (GCVE-0-2023-39471)
Vulnerability from nvd – Published: 2024-05-03 02:10 – Updated: 2024-08-02 18:10
VLAI
Title
TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability
Summary
TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the ated_tp service. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21825.
Severity
7.5 (High)
SSVC
Exploitation: none
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
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
Date Public
2023-11-14 21:52
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CVE-2022-29402 (GCVE-0-2022-29402)
Vulnerability from nvd – Published: 2022-05-25 17:24 – Updated: 2024-08-03 06:17
VLAI
Summary
TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.
Severity
6.8 (Medium)
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html | x_refsource_MISC |
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CVE-2021-46122 (GCVE-0-2021-46122)
Vulnerability from nvd – Published: 2022-04-18 15:27 – Updated: 2024-08-04 05:02
VLAI
Summary
Tp-Link TL-WR840N (EU) v6.20 Firmware (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) is vulnerable to Buffer Overflow via the Password reset feature.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://k4m1ll0.com/cve-tplink-tlwr840n-euV620-pa… | x_refsource_MISC |
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CVE-2022-26642 (GCVE-0-2022-26642)
Vulnerability from nvd – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the X_TP_ClonedMACAddress parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-26641 (GCVE-0-2022-26641)
Vulnerability from nvd – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the httpRemotePort parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
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| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-26640 (GCVE-0-2022-26640)
Vulnerability from nvd – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the minAddress parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
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| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-26639 (GCVE-0-2022-26639)
Vulnerability from nvd – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the DNSServers parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-25064 (GCVE-0-2022-25064)
Vulnerability from nvd – Published: 2022-02-25 19:38 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAddr.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| http://router.com | x_refsource_MISC |
| https://east-trowel-102.notion.site/CVE-2021-XXXX… | x_refsource_MISC |
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CVE-2022-25062 (GCVE-0-2022-25062)
Vulnerability from nvd – Published: 2022-02-25 19:38 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain an integer overflow via the function dm_checkString. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
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|---|---|
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CVE-2022-25061 (GCVE-0-2022-25061)
Vulnerability from nvd – Published: 2022-02-25 19:39 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a command injection vulnerability via the component oal_setIp6DefaultRoute.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| http://router.com | x_refsource_MISC |
| https://east-trowel-102.notion.site/CVE-2021-XXXX… | x_refsource_MISC |
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CVE-2022-25060 (GCVE-0-2022-25060)
Vulnerability from nvd – Published: 2022-02-25 19:38 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a command injection vulnerability via the component oal_startPing.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
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CVE-2021-41653 (GCVE-0-2021-41653)
Vulnerability from nvd – Published: 2021-11-13 14:18 – Updated: 2024-08-04 03:15Summary
The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a crafted payload in an IP address input field.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| https://www.tp-link.com/us/press/security-advisory/ | x_refsource_MISC |
| https://k4m1ll0.com/cve-2021-41653.html | x_refsource_MISC |
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CVE-2021-29280 (GCVE-0-2021-29280)
Vulnerability from nvd – Published: 2021-08-19 15:31 – Updated: 2024-08-03 22:02
VLAI
Summary
In TP-Link Wireless N Router WR840N an ARP poisoning attack can cause buffer overflow
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/deadlysnowman3308/upgraded-ARP… | x_refsource_MISC |
| https://hackingvila.wordpress.com/2021/04/28/upgr… | x_refsource_MISC |
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CVE-2020-36178 (GCVE-0-2020-36178)
Vulnerability from nvd – Published: 2021-01-06 20:57 – Updated: 2024-08-04 17:23
VLAI
Summary
oal_ipt_addBridgeIsolationRules on TP-Link TL-WR840N 6_EU_0.9.1_4.16 devices allows OS command injection because a raw string entered from the web interface (an IP address field) is used directly for a call to the system library function (for iptables). NOTE: oal_ipt_addBridgeIsolationRules is not the only function that calls util_execSystem.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/fr/support/download/tl-wr… | x_refsource_MISC |
| https://therealunicornsecurity.github.io/TPLink/ | x_refsource_MISC |
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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-2023-39471 (GCVE-0-2023-39471)
Vulnerability from cvelistv5 – Published: 2024-05-03 02:10 – Updated: 2024-08-02 18:10
VLAI
Title
TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability
Summary
TP-Link TL-WR841N ated_tp Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the ated_tp service. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21825.
Severity
7.5 (High)
SSVC
Exploitation: none
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
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
Date Public
2023-11-14 21:52
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CVE-2022-29402 (GCVE-0-2022-29402)
Vulnerability from cvelistv5 – Published: 2022-05-25 17:24 – Updated: 2024-08-03 06:17
VLAI
Summary
TP-Link TL-WR840N EU v6.20 was discovered to contain insecure protections for its UART console. This vulnerability allows attackers to connect to the UART port via a serial connection and execute commands as the root user without authentication.
Severity
6.8 (Medium)
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://k4m1ll0.com/cve-tplink-tlwr840N-uart-shell.html | x_refsource_MISC |
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CVE-2021-46122 (GCVE-0-2021-46122)
Vulnerability from cvelistv5 – Published: 2022-04-18 15:27 – Updated: 2024-08-04 05:02
VLAI
Summary
Tp-Link TL-WR840N (EU) v6.20 Firmware (0.9.1 4.17 v0001.0 Build 201124 Rel.64328n) is vulnerable to Buffer Overflow via the Password reset feature.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://k4m1ll0.com/cve-tplink-tlwr840n-euV620-pa… | x_refsource_MISC |
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CVE-2022-26642 (GCVE-0-2022-26642)
Vulnerability from cvelistv5 – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the X_TP_ClonedMACAddress parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-26641 (GCVE-0-2022-26641)
Vulnerability from cvelistv5 – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the httpRemotePort parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-26640 (GCVE-0-2022-26640)
Vulnerability from cvelistv5 – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the minAddress parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-26639 (GCVE-0-2022-26639)
Vulnerability from cvelistv5 – Published: 2022-03-28 22:42 – Updated: 2024-08-03 05:11
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the DNSServers parameter.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Quadron-Research-Lab/Hardware-… | x_refsource_MISC |
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CVE-2022-25061 (GCVE-0-2022-25061)
Vulnerability from cvelistv5 – Published: 2022-02-25 19:39 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a command injection vulnerability via the component oal_setIp6DefaultRoute.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| http://router.com | x_refsource_MISC |
| https://east-trowel-102.notion.site/CVE-2021-XXXX… | x_refsource_MISC |
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CVE-2022-25064 (GCVE-0-2022-25064)
Vulnerability from cvelistv5 – Published: 2022-02-25 19:38 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAddr.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| http://router.com | x_refsource_MISC |
| https://east-trowel-102.notion.site/CVE-2021-XXXX… | x_refsource_MISC |
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CVE-2022-25062 (GCVE-0-2022-25062)
Vulnerability from cvelistv5 – Published: 2022-02-25 19:38 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain an integer overflow via the function dm_checkString. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| http://router.com | x_refsource_MISC |
| https://east-trowel-102.notion.site/CVE-2021-XXXX… | x_refsource_MISC |
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CVE-2022-25060 (GCVE-0-2022-25060)
Vulnerability from cvelistv5 – Published: 2022-02-25 19:38 – Updated: 2024-08-03 04:29
VLAI
Summary
TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a command injection vulnerability via the component oal_startPing.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| http://router.com | x_refsource_MISC |
| https://east-trowel-102.notion.site/CVE-2021-XXXX… | x_refsource_MISC |
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CVE-2021-41653 (GCVE-0-2021-41653)
Vulnerability from cvelistv5 – Published: 2021-11-13 14:18 – Updated: 2024-08-04 03:15Summary
The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a crafted payload in an IP address input field.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| http://tp-link.com | x_refsource_MISC |
| https://www.tp-link.com/us/press/security-advisory/ | x_refsource_MISC |
| https://k4m1ll0.com/cve-2021-41653.html | x_refsource_MISC |
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CVE-2021-29280 (GCVE-0-2021-29280)
Vulnerability from cvelistv5 – Published: 2021-08-19 15:31 – Updated: 2024-08-03 22:02
VLAI
Summary
In TP-Link Wireless N Router WR840N an ARP poisoning attack can cause buffer overflow
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/deadlysnowman3308/upgraded-ARP… | x_refsource_MISC |
| https://hackingvila.wordpress.com/2021/04/28/upgr… | x_refsource_MISC |
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CVE-2020-36178 (GCVE-0-2020-36178)
Vulnerability from cvelistv5 – Published: 2021-01-06 20:57 – Updated: 2024-08-04 17:23
VLAI
Summary
oal_ipt_addBridgeIsolationRules on TP-Link TL-WR840N 6_EU_0.9.1_4.16 devices allows OS command injection because a raw string entered from the web interface (an IP address field) is used directly for a call to the system library function (for iptables). NOTE: oal_ipt_addBridgeIsolationRules is not the only function that calls util_execSystem.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/fr/support/download/tl-wr… | x_refsource_MISC |
| https://therealunicornsecurity.github.io/TPLink/ | x_refsource_MISC |
| https://github.com/therealunicornsecurity/thereal… | x_refsource_MISC |
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