CVE-2026-5509

An authenticated command injection vulnerability exists in the Archer BE450 v1 and BE7200 v1 router that allows an administrator to execute arbitrary system commands through the web management interface. After successfully authenticating to the admin interface, an attacker can leverage the browser’s developer console by supplying a crafted input that is passed to backend system commands without adequate sanitization. Successful exploitation enables execution of arbitrary commands with elevated privileges on the device, which may allow the attacker to start unauthorized services, modify system configuration, or otherwise fully compromise the router’s operating environment.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://jvn.jp/en/vu/JVNVU95687008/
https://www.tp-link.com/en/support/download/archer-be450/#Firmware	Product
https://www.tp-link.com/jp/support/download/archer-be450/#Firmware	Product
https://www.tp-link.com/jp/support/download/archer-be7200/#Firmware	Product
https://www.tp-link.com/us/support/faq/5102/	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:tp-link:archer_be450_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:archer_be450:1.0:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:tp-link:archer_be7200_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:tp-link:archer_be7200:1.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-27 18:16

Updated : 2026-06-17 10:59

NVD link : CVE-2026-5509

Mitre link : CVE-2026-5509

CVE.ORG link : CVE-2026-5509

JSON object : View

Products Affected

tp-link

archer_be7200
archer_be450_firmware
archer_be7200_firmware
archer_be450

CWE

CWE-20

Improper Input Validation

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

{"id": "CVE-2026-5509", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-5509", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-05-27T00:00:00+00:00"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.2}], "cvssMetricV40": [{"type": "Secondary", "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.5, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "f23511db-6c3e-4e32-a477-6aa17d310630", "affectedData": [{"vendor": "TP-Link Systems Inc.", "product": "Archer BE7200 V1", "versions": [{"status": "affected", "version": "0", "lessThan": "1.3.0 Build 20260416", "versionType": "custom"}], "defaultStatus": "unaffected"}, {"vendor": "TP-Link Systems Inc.", "product": "Archer BE450 v1", "versions": [{"status": "affected", "version": "0", "lessThan": "1.3.0 Build 20260416", "versionType": "custom"}], "defaultStatus": "unaffected"}]}], "published": "2026-05-27T18:16:29.050", "references": [{"url": "https://jvn.jp/en/vu/JVNVU95687008/", "source": "f23511db-6c3e-4e32-a477-6aa17d310630"}, {"url": "https://www.tp-link.com/en/support/download/archer-be450/#Firmware", "tags": ["Product"], "source": "f23511db-6c3e-4e32-a477-6aa17d310630"}, {"url": "https://www.tp-link.com/jp/support/download/archer-be450/#Firmware", "tags": ["Product"], "source": "f23511db-6c3e-4e32-a477-6aa17d310630"}, {"url": "https://www.tp-link.com/jp/support/download/archer-be7200/#Firmware", "tags": ["Product"], "source": "f23511db-6c3e-4e32-a477-6aa17d310630"}, {"url": "https://www.tp-link.com/us/support/faq/5102/", "tags": ["Vendor Advisory"], "source": "f23511db-6c3e-4e32-a477-6aa17d310630"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "f23511db-6c3e-4e32-a477-6aa17d310630", "description": [{"lang": "en", "value": "CWE-20"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-77"}]}], "descriptions": [{"lang": "en", "value": "An authenticated command injection vulnerability exists in the Archer BE450 v1 and BE7200 v1 router that allows an administrator to execute arbitrary system commands through the web management interface. After successfully authenticating to the admin interface, an attacker can leverage the browser\u2019s developer console by supplying a crafted input that is passed to backend system commands without adequate sanitization. \n\nSuccessful exploitation enables execution of arbitrary commands with elevated privileges on the device, which may allow the attacker to start unauthorized services, modify system configuration, or otherwise fully compromise the router\u2019s operating environment."}], "lastModified": "2026-06-17T10:59:08.677", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tp-link:archer_be450_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EF70A00B-115E-42C7-9F6C-AE14AAE98BFC", "versionEndExcluding": "1.3.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tp-link:archer_be450:1.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "13F9E8D4-76B5-454B-B578-83C6ADE36674"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:tp-link:archer_be7200_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "854A461A-3482-41E2-8AD9-3DC0EEC4E5D9", "versionEndExcluding": "1.3.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:tp-link:archer_be7200:1.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2AB74E5F-5BA5-4582-985B-9D4659B17305"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "f23511db-6c3e-4e32-a477-6aa17d310630"}