TP-Link VX800v 1.0 Web Interface entropy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in TP-Link VX800v 1.0 and classified as problematic. This vulnerability affects unknown code of the component Web Interface. This manipulation causes entropy. This vulnerability appears as CVE-2025-13399. The attacker needs to be present on the local network. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in TP-Link VX800v 1.0. Affected by this vulnerability is an unknown part of the component Web Interface. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at tp-link.com. This vulnerability is known as CVE-2025-13399 since 11/19/2025. The exploitation appears to be difficult. The attack needs to be done within the local network. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-206515). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Entropy
CWE: CWE-331 / CWE-330 / CWE-310
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/19/2025 CVE reserved
01/30/2026 +72 days Advisory disclosed
01/30/2026 +0 days VulDB entry created
03/09/2026 +38 days VulDB entry last update

Sourcesinfo

Vendor: tp-link.com

Advisory: tp-link.com
Status: Not defined

CVE: CVE-2025-13399 (🔒)
GCVE (CVE): GCVE-0-2025-13399
GCVE (VulDB): GCVE-100-343423
EUVD: 🔒

Entryinfo

Created: 01/30/2026 07:42
Updated: 03/09/2026 19:04
Changes: 01/30/2026 07:42 (65), 01/30/2026 12:11 (1), 03/09/2026 19:04 (12)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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