Azure Access BLU-IC2/BLU-IC4 up to 1.19.5 z9.service out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$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. This affects an unknown function of the file /etc/avahi/services/z9.service. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2025-12602. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Azure Access BLU-IC2 and BLU-IC4 up to 1.19.5 and classified as critical. This issue affects some unknown functionality of the file /etc/avahi/services/z9.service. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

/etc/avahi/services/z9.service can be Arbitrarily Written.This issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

The weakness was shared by Kevin Schaller, Benjamin Lafois, Alexi Bitsios, Sebastian Toscano and Dominik Schneider. It is possible to read the advisory at azure-access.com. The identification of this vulnerability is CVE-2025-12602 since 11/01/2025. The exploitation is known to be difficult. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/08/2025).

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-37437). Statistical analysis made it clear that VulDB provides the best quality for 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: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.0
VulDB Temp Score: 5.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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

11/01/2025 CVE reserved
11/02/2025 +1 days Advisory disclosed
11/02/2025 +0 days VulDB entry created
11/08/2025 +6 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-2025-12602 (🔒)
GCVE (CVE): GCVE-0-2025-12602
GCVE (VulDB): GCVE-100-330899
EUVD: 🔒

Entryinfo

Created: 11/02/2025 07:24
Updated: 11/08/2025 09:04
Changes: 11/02/2025 07:24 (66), 11/02/2025 12:01 (1), 11/08/2025 09:04 (11)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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