CVE-2025-13399 HIGH

CVE-2025-13399: Insecure Encryption in Communication with the Web Interface on TP-Link VX800v

Vendor Tp-Link Systems Inc.
Product VX800v v1.0
Weakness CWE-331
Published January 29, 2026
Last update February 26, 2026

CVSS base score

7.7/10
Attack vector Adjacent
Attack complexity High
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

A weakness in the web interface’s application layer encryption in VX800v v1.0 allows an adjacent attacker to brute force the weak AES key and decrypt intercepted traffic. Successful exploitation requires network proximity but no authentication, and may result in high impact to confidentiality, integrity, and availability of transmitted data.

Key dates

02Disclosure timeline

January 29, 2026 CVE published
February 26, 2026 Record updated