CVE-2025-12599Network attack vector

Authentication bypass via shared SDKSocket secrets

Published Nov 1, 2025 · Updated Nov 1, 2025

Shared cryptographic keys in SDKSocket on BLU-IC2 and BLU-IC4 through 1.19.5 allow remote attackers to impersonate trusted peers. The TCP/5000 service uses the same secret across multiple devices instead of a unique per-device key, so possession of the shared key satisfies its cryptographic trust check. No authentication or user interaction is required, and successful access exposes device and downstream-system confidentiality, integrity, and availability.

CVSS severity10.0
Critical
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Shared cryptographic keys in SDKSocket on BLU-IC2 and BLU-IC4 through 1.19.5 allow remote attackers to impersonate trusted peers. The TCP/5000 service uses the same secret across multiple devices instead of a unique per-device key, so possession of the shared key satisfies its cryptographic trust check. No authentication or user interaction is required, and successful access exposes device and downstream-system confidentiality, integrity, and availability.

The record

CVE
CVE-2025-12599
Published
Nov 1, 2025
Updated
Nov 1, 2025
Vendor
Azure Access Technology
Product
BLU-IC4
Classifications
CWE-321, CAPEC-191
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 1, 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

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
CAPEC-191Read Sensitive Constants Within an Executable

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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