CVE-2026-5040

TP-Link Deco M5 v1 uses a weak password hashing mechanism to store user credentials. An attacker who obtains the password hash through system compromise or privileged access could perform brute-force or dictionary attacks. Successful exploitation may result in disclosure of authentication credentials, enabling unauthorized access to device management functions, depending on the privileges associated with the recovered password. The primary security impact is loss of confidentiality.

Score

CVSS 4.0 7.1 High

Status

Analyzed - f23511db-6c3e-4e32-a477-6aa17d310630

Published

2026-07-14

Last modified

2026-10-24

Weaknesses

CWE-916

Affected products

• Deco M5 Firmware (Tp-link)
• Deco M5 Deco M5 V1 (Tp-link Systems Inc.)

References

• https://www.tp-link.com/us/support/download/deco-m5/v1/#Firmware
• https://www.tp-link.com/en/support/download/deco-m5/v1/#Firmware
• https://www.tp-link.com/us/support/faq/5190/