What’s Vulnerable › Vulnerabilities

CVE-2026-102814: Improper Authentication in TP-Link TDDP v2 Allows Root Command Execution in TP-Link RE305

• Severity: high (CVSS 8.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-27 · updated 2026-10-29
• Weakness: CWE-78

Description

An authentication weakness exists in the TP-Link TDDP v2 service of TP-Link RE305 V3. TDDP v2 uses a fixed and derivable cryptographic key, which may allow an unauthenticated attacker on the same local network to forge protocol packets and access privileged TDDP operations, including functionality that can lead to operating-system command execution when the TDDP service is running and accessible. Successful exploitation may allow an unauthenticated attacker on the same local area network to execute arbitrary system commands with root privileges.

Affected products

• TP-Link Systems Inc. RE305 v3: before 1.1.8 Build 20260921 Rel. 42853 — fixed in 1.1.8 Build 20260921 Rel. 42853

How to fix

Upgrade to a fixed version: TP-Link Systems Inc. RE305 v3 1.1.8 Build 20260921 Rel. 42853. Check the vendor advisory for mitigations.

References

• https://www.tp-link.com/en/support/download/re305/v3/#Firmware
• https://www.tp-link.com/us/support/download/re305/v3/#Firmware
• https://www.tp-link.com/us/support/faq/5362/

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