CVE-2026-15141Referer Validation Bypass in TL-WR820N Web Management Interface
Updated under an hour ago ()
Does this affect you?
It affects TP-Link Systems Inc. TL-WR820N v2 and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 5.3 MEDIUM (v4.0, CNA)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
- Weakness (CWE)
- CWE-346
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TPLink
- NVD analysis
- Analyzed
- Record last updated
- Aug 13, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TP-Link Systems Inc. TL-WR820N v2 tp_link_systems:tl_wr820n_v2 (from the name) | before 1.15.20 Build 260611 Rel.29552n | CNA record |
tp-link tl-wr820n_firmware tp-link:tl-wr820n_firmware | before 1.15.20 | NVD |
References
- https://www.tp-link.com/kr/support/download/tl-wr820n/#Firmwarepatch, product
- https://www.tp-link.com/en/support/download/tl-wr820n/#Firmwarepatch, product
- https://www.tp-link.com/en/support/faq/5243/vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.