CVE-2025-8627

Device shutdown and information disclosure via unauthenticated commands

Published Aug 25, 2025 · Updated Aug 26, 2025

Missing authentication in TP-Link KP303 firmware before 1.1.0 allows attackers to power off outlets and leak information over an adjacent network. The device accepts protocol commands without authentication, but TP-Link has not disclosed the affected protocol handler or its command-validation logic. Network adjacency is required; successful commands can interrupt power to connected equipment and leak information of an undisclosed nature without user interaction.

CVSS severity8.7
High
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in TP-Link KP303 firmware before 1.1.0 allows attackers to power off outlets and leak information over an adjacent network. The device accepts protocol commands without authentication, but TP-Link has not disclosed the affected protocol handler or its command-validation logic. Network adjacency is required; successful commands can interrupt power to connected equipment and leak information of an undisclosed nature without user interaction.

The record

CVE
CVE-2025-8627
Published
Aug 25, 2025
Updated
Aug 26, 2025
Vendor
TP-Link Systems Inc.
Product
Kasa Smart Wi-Fi Power Strip (KP303)
Classifications
CWE-306, T1499
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.1.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

TP-Link Systems Inc. · Kasa Smart Wi-Fi Power Strip (KP303)version=0 <1.1.0

Published CVSS scores

8.7TP-LinkCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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