CVE-2025-10127Public exploitNetwork attack vector

Unauthenticated account takeover via password reset

Published Sep 11, 2025 · Updated Sep 24, 2025

Authentication bypass in Daikin Europe N.V. Security Gateway App 100 and Frm 214 allows remote attackers to take over the gateway. The unauthenticated /api/settings/password/reset endpoint accepts the user-controlled key t00t and resets credentials to the default Daikin values. Network access to the HTTPS management interface is sufficient; exploitation changes the administrator password and permits login without prior credentials.

CVSS severity8.8
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Daikin Europe N.V. Security Gateway App 100 and Frm 214 allows remote attackers to take over the gateway. The unauthenticated /api/settings/password/reset endpoint accepts the user-controlled key t00t and resets credentials to the default Daikin values. Network access to the HTTPS management interface is sufficient; exploitation changes the administrator password and permits login without prior credentials.

The record

CVE
CVE-2025-10127
Published
Sep 11, 2025
Updated
Sep 24, 2025
Vendor
Daikin Europe N.V.
Product
Security Gateway
Classifications
CWE-640, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 11, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 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=App: 100, Frm: 214

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Daikin Europe N.V. · Security Gatewayversion=App: 100, Frm: 214

Published CVSS scores

9.8CISACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8CVE Program CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:L

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-640Weak Password Recovery Mechanism for Forgotten Password
T1190Exploit Public-Facing Application

Public exploit references

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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