The web
interface of the affected
device relies on the HTTP referrer header as part of
request validation.  Requests containing empty Referer value, or omitting
the Referer header entirely, may be accepted and processed due to insufficient
validation logic.





Successful exploitation may allow an adjacent attacker with access to the web management
interface to obtain device configuration details and other sensitive
information.

Attack Vector Adjacent Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
TP-Link Systems Inc. TL-WR820N v2 unaffected
Version Status Constraints
0 affected < 1.15.20 Build 260611 Rel.29552n

No data.

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.tp-link.com/en/support/download/tl-wr820n/#Firmware cve-icon cve-icon
https://www.tp-link.com/en/support/faq/5243/ cve-icon cve-icon
https://www.tp-link.com/kr/support/download/tl-wr820n/#Firmware cve-icon cve-icon
History

Wed, 12 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
Description The web interface of the affected device relies on the HTTP referrer header as part of request validation.  Requests containing empty Referer value, or omitting the Referer header entirely, may be accepted and processed due to insufficient validation logic. Successful exploitation may allow an adjacent attacker with access to the web management interface to obtain device configuration details and other sensitive information.
Title Referer Validation Bypass in TL-WR820N Web Management Interface
Weaknesses CWE-346
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TPLink

Published:

Updated: 2026-08-12T22:35:58.962Z

Reserved: 2026-07-08T17:23:13.249Z

Link: CVE-2026-15141

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-12T23:17:19.703

Modified: 2026-08-12T23:17:19.703

Link: CVE-2026-15141

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-13T02:00:13Z

Weaknesses