CVE-2025-12216Network attack vector

Service unavailability via nonremovable malformed applications

Published Oct 25, 2025 · Updated Oct 25, 2025

Application-removal failure in Azure Access Technology BLU-IC2 and BLU-IC4 through 1.19.5 allows attackers to cause unavailability. The controllers accept a malicious or malformed onboard application for installation but cannot remove it afterward; the vendor has not disclosed the responsible validation or deletion locus. Published assessments disagree on the gate: the vendor treats it as unauthenticated and network-reachable, while NVD requires local access and user interaction; the bounded consequence is controller-service unavailability.

CVSS severity10.0
Critical
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Application-removal failure in Azure Access Technology BLU-IC2 and BLU-IC4 through 1.19.5 allows attackers to cause unavailability. The controllers accept a malicious or malformed onboard application for installation but cannot remove it afterward; the vendor has not disclosed the responsible validation or deletion locus. Published assessments disagree on the gate: the vendor treats it as unauthenticated and network-reachable, while NVD requires local access and user interaction; the bounded consequence is controller-service unavailability.

The record

CVE
CVE-2025-12216
Published
Oct 25, 2025
Updated
Oct 25, 2025
Vendor
Azure Access Technology
Product
BLU-IC4
Classifications
CWE-1301, CAPEC-37, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 25, 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 <=1.19.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Azure Access Technology · BLU-IC4version=0 <=1.19.5
Azure Access Technology · BLU-IC2version=0 <=1.19.5

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
10.0Azure Access TechnologyCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-1301Insufficient or Incomplete Data Removal within Hardware Component
CAPEC-37Retrieve Embedded Sensitive Data
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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