Azure Access BLU-IC2/BLU-IC4 up to 1.19.5 on-chip debug and test interface with improper access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Azure Access BLU-IC2 and BLU-IC4 up to 1.19.5. Affected by this vulnerability is an unknown functionality. The manipulation leads to on-chip debug and test interface with improper access control. This vulnerability is documented as CVE-2025-12114. The attack needs to be performed locally. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Azure Access BLU-IC2 and BLU-IC4 up to 1.19.5. This issue affects some unknown functionality. The manipulation with an unknown input leads to a on-chip debug and test interface with improper access control vulnerability. Using CWE to declare the problem leads to CWE-1191. The chip does not implement or does not correctly perform access control to check whether users are authorized to access internal registers and test modes through the physical debug/test interface. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Enabled serial console could potentially leak information that might help attacker to find vulnerabilities.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

The weakness was released by Kevin Schaller, Benjamin Lafois, Alexi Bitsios, Sebastian Toscano and Dominik Schneider. The advisory is shared at azure-access.com. The identification of this vulnerability is CVE-2025-12114 since 10/23/2025. The exploitation is known to be difficult. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 7.0
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: On-chip debug and test interface with improper access control
CWE: CWE-1191
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/23/2025 Advisory disclosed
10/23/2025 +0 days CVE reserved
10/23/2025 +0 days VulDB entry created
11/10/2025 +18 days VulDB entry last update

Sourcesinfo

Advisory: azure-access.com
Researcher: Kevin Schaller, Benjamin Lafois, Alexi Bitsios, Sebastian Toscano, Dominik Schneider
Status: Confirmed

CVE: CVE-2025-12114 (🔒)
GCVE (CVE): GCVE-0-2025-12114
GCVE (VulDB): GCVE-100-329681

Entryinfo

Created: 10/23/2025 18:14
Updated: 11/10/2025 16:26
Changes: 10/23/2025 18:14 (64), 11/10/2025 16:26 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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