PT-2026-58689 · Tp Link Systems · Deco M5 Deco M5 V1

Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-5040

NVD

CVSS v4.0

7.1

High

Base vector

AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

Weakness Enumeration

CWE-916

Related Identifiers

CVE-2026-5040

Affected Products

Deco M5 Deco M5 V1

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-5040 · Security Note
• https://tp-link.com/en/support/download/deco-m5/v1/#Firmware · Note
• https://tp-link.com/us/support/faq/5190 · Note
• https://tp-link.com/us/support/download/deco-m5/v1/#Firmware · Note