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CVE-2026-10562: Unauthenticated Open Redirect Vulnerability on TP-Link Archer AX20 Web Interface

• Severity: medium (CVSS 5.9 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-30 · updated 2026-10-25
• Weakness: CWE-601

Description

An unauthenticated URL redirection vulnerability has been identified in Archer AX20 V2 due to improper validation of user-supplied URL input within the web interface.  An unauthenticated attacker can craft URLs containing URL-encoded path traversal sequences. When processed by the embedded web server, these inputs may cause the device to respond with HTTP 3xx redirects to attacker-controlled external domains. This issue affects Archer AX20 V2.0: through 2.1.9 Build 20230829.

Affected products

• TP-Link Systems Inc. Archer AX20 V2.0: before V2_260527 — fixed in V2_260527

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. Archer AX20 V2.0 V2_260527. Check the vendor advisory for mitigations.

References

• https://www.tp-link.com/en/support/download/archer-ax20/v2/#Firmware
• https://www.tp-link.com/en/support/faq/5156/

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