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10 vulnerabilities found for mx4200 by linksys
CVE-2026-27850 (GCVE-0-2026-27850)
Vulnerability from nvd – Published: 2026-02-25 16:58 – Updated: 2026-02-25 19:11
VLAI
Title
Improper verification in Linksys MR9600, Linksys MX4200
Summary
Due to an improperly configured firewall rule, the router will accept any connection on the WAN port with the source port 5222, exposing all services which are normally only accessible through the local network.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- cwe-940 Improper Verification of Source of a Communication Channel
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-27849 (GCVE-0-2026-27849)
Vulnerability from nvd – Published: 2026-02-25 16:20 – Updated: 2026-02-26 16:47
VLAI
Title
Missing neutralization in Linksys MR9600, Linksys MX4200
Summary
Due to missing neutralization of special elements, OS commands can be injected via the update functionality of a TLS-SRP connection, which is normally used for configuring devices inside the mesh network.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
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.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-27848 (GCVE-0-2026-27848)
Vulnerability from nvd – Published: 2026-02-25 15:15 – Updated: 2026-02-26 16:51
VLAI
Title
Missing neutralization in Linksys MR9600, Linksys MX4200
Summary
Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
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.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-27847 (GCVE-0-2026-27847)
Vulnerability from nvd – Published: 2026-02-25 15:10 – Updated: 2026-02-26 16:56
VLAI
Title
Missing authentication in Linksys MR9600, Linksys MX4200
Summary
Due to improper neutralization of special elements, SQL statements can be injected via the handshake of a TLS-SRP connection. This can be used to inject known credentials into the database that can be utilized to successfully complete the handshake and use the protected service.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-27846 (GCVE-0-2026-27846)
Vulnerability from nvd – Published: 2026-02-25 15:03 – Updated: 2026-02-25 18:36
VLAI
Title
Missing authentication in Linksys MR9600, Linksys MX4200
Summary
Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network
to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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}
],
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CVE-2026-27850 (GCVE-0-2026-27850)
Vulnerability from cvelistv5 – Published: 2026-02-25 16:58 – Updated: 2026-02-25 19:11
VLAI
Title
Improper verification in Linksys MR9600, Linksys MX4200
Summary
Due to an improperly configured firewall rule, the router will accept any connection on the WAN port with the source port 5222, exposing all services which are normally only accessible through the local network.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- cwe-940 Improper Verification of Source of a Communication Channel
Assigner
References
1 reference
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CVE-2026-27849 (GCVE-0-2026-27849)
Vulnerability from cvelistv5 – Published: 2026-02-25 16:20 – Updated: 2026-02-26 16:47
VLAI
Title
Missing neutralization in Linksys MR9600, Linksys MX4200
Summary
Due to missing neutralization of special elements, OS commands can be injected via the update functionality of a TLS-SRP connection, which is normally used for configuring devices inside the mesh network.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
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 |
|---|---|
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CVE-2026-27848 (GCVE-0-2026-27848)
Vulnerability from cvelistv5 – Published: 2026-02-25 15:15 – Updated: 2026-02-26 16:51
VLAI
Title
Missing neutralization in Linksys MR9600, Linksys MX4200
Summary
Due to missing neutralization of special elements, OS commands can be injected via the handshake of a TLS-SRP connection, which are ultimately run as the root user.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
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.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-27847 (GCVE-0-2026-27847)
Vulnerability from cvelistv5 – Published: 2026-02-25 15:10 – Updated: 2026-02-26 16:56
VLAI
Title
Missing authentication in Linksys MR9600, Linksys MX4200
Summary
Due to improper neutralization of special elements, SQL statements can be injected via the handshake of a TLS-SRP connection. This can be used to inject known credentials into the database that can be utilized to successfully complete the handshake and use the protected service.
This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-27846 (GCVE-0-2026-27846)
Vulnerability from cvelistv5 – Published: 2026-02-25 15:03 – Updated: 2026-02-25 18:36
VLAI
Title
Missing authentication in Linksys MR9600, Linksys MX4200
Summary
Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network
to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
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"value": "Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network\u0026nbsp;\u003cbr\u003eto gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.\u003cp\u003eThis issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.\u003c/p\u003e"
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"value": "Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network\u00a0\nto gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200."
}
],
"impacts": [
{
"capecId": "CAPEC-37",
"descriptions": [
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"lang": "en",
"value": "CAPEC-37 Retrieve Embedded Sensitive Data"
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]
}
],
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"descriptions": [
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"cweId": "CWE-306",
"description": "CWE-306 Missing Authentication for Critical Function",
"lang": "en",
"type": "CWE"
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}
],
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"dateUpdated": "2026-02-25T15:03:58.616Z",
"orgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
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"tags": [
"third-party-advisory",
"technical-description"
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"url": "https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-002.txt"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Missing authentication in Linksys MR9600, Linksys MX4200",
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"assignerOrgId": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
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"cveId": "CVE-2026-27846",
"datePublished": "2026-02-25T15:03:58.616Z",
"dateReserved": "2026-02-24T07:07:48.973Z",
"dateUpdated": "2026-02-25T18:36:03.925Z",
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