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Blu Ic2 Firmware CVE-2025-12601

CRITICAL
OWASP Top Ten 2004 Category A9 - Denial of Service (CWE-730)
2025-11-01 a0340c66-c385-4f8b-991b-3d05f6fd5220
Denial Of Service Blu Ic2 Firmware Blu Ic4 Firmware Azure Access
10.0
CVSS 4.0 · Vendor: a0340c66-c385-4f8b-991b-3d05f6fd5220
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Vulnerability Assessment

Weakness
CWE
CWE-730
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V14 - Configuration Dependency management, component inventory
Impact

CVSS score of 10.0 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. EPSS exploitation probability: 0.14%.
Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system.
Act Now Prioritize within 24-48h. Why: CRITICAL severity.
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 28, 2026

Denial of Service Due to SlowLoris.19.5; BLU-IC4: through 1.19.5. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Technical ContextAI · show details

This vulnerability is classified under CWE-730. Denial of Service Due to SlowLoris.19.5; BLU-IC4: through 1.19.5. Affected products include: Azure-Access Blu-Ic2 Firmware, Azure-Access Blu-Ic4 Firmware. Version information: through 1.19.5.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

Vendor (a0340c66-c385-4f8b-991b-3d05f6fd5220) PRIMARY 10.0 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Primary rating from Vendor (a0340c66-c385-4f8b-991b-3d05f6fd5220) · only source for this CVE.

CVSS VectorVendor: a0340c66-c385-4f8b-991b-3d05f6fd5220

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
High
Subsequent system: Integrity
High
Subsequent system: Availability
High

DescriptionCVE.org

Denial of Service Due to SlowLoris.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

Executive ViewAI

Why It Matters

Organizations using Denial of Service Due to SlowLoris.This face critical risk from CVE-2025-12601 rated CVSS 10.0. Successful exploitation could critically impact the confidentiality, integrity, and availability of affected systems. Organizations should apply vendor updates immediately when available and implement compensating controls in the interim.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.

Threat Intelligence Overview

EPSS Score
0.1%
Top 66% exploitable
Data Quality
3 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Out-of-Cycle
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact
Very High

Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +50
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)CVE.org

cpe:2.3:o:azure-access:blu-ic2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:azure-access:blu-ic4_firmware:*:*:*:*:*:*:*:*

More in Blu Ic2 Firmware

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Unauthenticated remote command execution affects Azure Access BLU-IC2 and BLU-IC4 firmware through version 1.19.5, where
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Unauthenticated remote attackers can retrieve server version information from Azure Access BLU-IC2 and BLU-IC4 physical

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Unauthenticated remote access to a critical function in Azure Access BLU-IC2/IC4 firmware through 1.19.5 lets a network

CVE-2025-12424 CRITICAL
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Local privilege escalation in Azure Access BLU-IC2 and BLU-IC4 intercom firmware through 1.19.5 allows a lower-privilege
CVE-2025-12364 CRITICAL
10.0 Oct 27

Weak password policy in Azure Access BLU-IC2 and BLU-IC4 intercom access controller firmware through version 1.19.5 can

CVE-2025-12285 CRITICAL
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BLU-IC2 and BLU-IC4 access-control/intercom units running firmware 1.19.5 or earlier ship with a factory default passwor
CVE-2025-12176 CRITICAL
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BLU-IC2 and BLU-IC4 firmware through 1.19.5 contain undocumented administrative accounts that allow network-reachable at

Same weakness CWE-730 – OWASP Top Ten 2004 Category A9 - Denial of Service

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CVE-2025-12600 CRITICAL
10.0

Same technique Denial Of Service

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CVE-2015-5119 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2011-0611 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2012-0507 CRITICAL POC
9.8
CVE-2014-1761 HIGH POC
7.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2011-0609 HIGH POC
7.8

References

Advisories & patches
ADVISORY https://azure-access.com/security-advisories

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