CVE-2026-15141

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.

CVSS 4.0

5.3CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.7CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

CWE

CWE-346

Published

2026-08-12

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• tp-link:tl-wr820n_firmware

References

• https://www.tp-link.com/en/support/download/tl-wr820n/#Firmware
• https://www.tp-link.com/en/support/faq/5243/
• https://www.tp-link.com/kr/support/download/tl-wr820n/#Firmware

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