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CVE PROGRAM SOURCE RECORD6.1 Medium

CVE-2026-18330

Hardcoded Shared RSA-1024 Private Key in Web Login in TP-Link RE305 and Archer C7

Description

A hard-coded cryptographic key vulnerability exists in TP-Link RE305 V3 and Archer C7 V5. The same RSA-1024 private key is stored within firmware configuration files and reused across devices. An attacker who obtains the private key and captures an HTTP Web UI login session may use the key to decrypt the administrator password.  Successful exploitation may disclose the administrator password captured from an HTTP login session and compromise session confidentiality.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

TP-Link Systems Inc. RE305 v3

Default version status: unaffected

  • 0 to < 1.1.8 Build 20260921 Rel. 42853affected

TP-Link Systems Inc. Archer C7 v5

Default version status: unaffected

  • 0 to < 1.3.1 Build 20260821 Rel. 41256affected

References