Which versions of Kp303 Firmware are affected by CVE-2025-8627?

Organizations using TP-Link KP303 Smartplug can be face significant risk from CVE-2025-8627, a missing authentication vulnerability rated CVSS 8.7.

How to fix or mitigate CVE-2025-8627?

Within 30 days: Identify all affected systems and apply vendor patches as part of regular patch cycle. Audit authentication configurations and rotate any potentially compromised credentials.

Kp303 Firmware CVE-2025-8627

Q: What is the CVSS score of CVE-2025-8627?

CVE-2025-8627 has a CVSS 4.0 base score of 8.7 (High). CVSS vector: CVSS:4.0/AV:A/AC:L/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:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

HIGH

Missing Authentication for Critical Function (CWE-306)

2025-08-25 f23511db-6c3e-4e32-a477-6aa17d310630

Authentication Bypass TP-Link Kp303 Firmware

8.7

CVSS 4.0

CVSS:4.0/AV:A/AC:L/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:X/V:X/RE:X/U:X

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:08 vuln.today

CVE Published

Aug 25, 2025 - 22:15 nvd

HIGH 8.7

DescriptionNVD

The TP-Link KP303 Smartplug can be issued unauthenticated protocol commands that may cause unintended power-off condition and potential information leak.

This issue affects TP-Link KP303 (US) Smartplug: before 1.1.0.

AnalysisAI

The TP-Link KP303 Smartplug can be issued unauthenticated protocol commands that may cause unintended power-off condition and potential information leak.1.0. Rated high severity (CVSS 8.7), this vulnerability is no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. The TP-Link KP303 Smartplug can be issued unauthenticated protocol commands that may cause unintended power-off condition and potential information leak.1.0. Affected products include: Tp-Link Kp303 Firmware. Version information: before 1.1.0..

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.