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Description

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.

PUBLISHED Reserved 2026-03-27 | Published 2026-07-14 | Updated 2026-07-14 | Assigner TPLink




HIGH: 7.1CVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-916 Use of Password Hash With Insufficient Computational Effort

Product status

Default status
unaffected

Any version before 1.9.4 Build 20260312 Rel.17129
affected

References

www.tp-link.com/us/support/download/deco-m5/v1/

www.tp-link.com/en/support/download/deco-m5/v1/

www.tp-link.com/us/support/faq/5190/

cve.org (CVE-2026-5040)

nvd.nist.gov (CVE-2026-5040)

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