← Vulnerability feed

Vulnerability record · CVE-2025-13399 · published 29 January 2026

CVE-2025-13399: Tp-link vx800v firmware vulnerability

Tp Link · Vx800v Firmware

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.

7.7 CVSS 4.0 High EPSS 0.17% · top 94.5% CWE-331 · CWE-331
7.7CVSS 4.0 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

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/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.tp-link.com/de/support/download/vx800v/#Firmware Product
https://www.tp-link.com/us/support/faq/4930/ Vendor Advisory

Track CVE-2025-13399 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

6.9CVE-2025-15541Tp-link vx800v firmware link following vulnerabilityImproper link resolution in the VX800v v1.0 SFTP service allows authenticated adjacent attackers to use crafted symbolic links to access system files…EPSS 0.27%6.3CVE-2025-15542Tp-link vx800v firmware vulnerabilityImproper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blo…EPSS 0.29%5.3CVE-2025-15548Tp-link vx800v firmware missing encryption vulnerabilitySome VX800v v1.0 web interface endpoints transmit sensitive information over unencrypted HTTP due to missing application layer encryption, allowing a…EPSS 0.08%5.1CVE-2025-15543Tp-link vx800v firmware link following vulnerabilityImproper link resolution in USB HTTP access path in VX800v v1.0 allows a crafted USB device to expose root filesystem contents, giving an attacker wi…EPSS 0.21%

Source: NIST National Vulnerability Database (record CVE-2025-13399), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.