CVE-2026-18330

Impact

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 packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• https://www.tp-link.com/en/support/download/archer-c7/v5/#Firmware
• https://www.tp-link.com/en/support/download/re305/v3/#Firmware
• https://www.tp-link.com/us/support/download/archer-c7/v5/#Firmware
• https://www.tp-link.com/us/support/download/re305/v3/#Firmware
• https://www.tp-link.com/us/support/faq/5362/