Cyber Resilience

CVE-2025-12031

Azure-Access Blu-Ic2 Firmware ≤ 1.20

Published
21 October 2025
Modified
07 November 2025
Patch / advisory
View advisory
CVSS Score v4 5.3
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0019 9th percentile
Risk Priority 31 floored blend · peak EPSS

Summary

CVE-2025-12031 is a medium-severity Sensitive Cookie Without 'HttpOnly' Flag (CWE-1004) vulnerability in Azure-Access Blu-Ic2 Firmware. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Steal Web Session Cookie (T1539); ranked at the 9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SC-23 (Session Authenticity) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

A02:2025 Security Misconfiguration

EU & UK References

Vulnerability Data

HTTP Security Misconfiguration - Lacking Secure and HTTPOnly Attribute may allow reading the sensitive cookies from the javascript contextThis issue affects BLU-IC2: through 1.19.5; BLU-IC4: through 1.19.5.

CWE(s)
CWE-1004

Related Threats

MITRE ATT&CK Enterprise Techniques

T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-12001Same product: Azure-Access Blu-Ic2
CVE-2025-12284Same product: Azure-Access Blu-Ic2
CVE-2025-12278Same product: Azure-Access Blu-Ic2
CVE-2025-12363Same product: Azure-Access Blu-Ic2
CVE-2025-11925Same product: Azure-Access Blu-Ic2
CVE-2025-12285Same product: Azure-Access Blu-Ic2
CVE-2025-12423Same product: Azure-Access Blu-Ic2
CVE-2025-12218Same product: Azure-Access Blu-Ic2
CVE-2025-12602Same product: Azure-Access Blu-Ic2
CVE-2025-12517Same product: Azure-Access Blu-Ic2

Affected Assets

azure-access
blu-ic2 firmware
≤ 1.20
azure-access
blu-ic4 firmware
≤ 1.20

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

SC-23 Session Authenticity good match

Proper implementation of session authenticity requires marking sensitive session cookies HttpOnly so that client scripts cannot access them.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Broad SDLC practices catch cookie-handling defects via standards/testing (mostly forward) yet remain too general to guarantee this narrow flag setting is always enforced (partial reverse).

PR.AT-02 partial match
prevents

Role-based training can reduce the chance developers introduce missing HttpOnly flags but supplies no enforcement or detection, leaving essentially all of the implementation flaw's risk intact.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect missing HttpOnly flags but does not prevent the weakness.

A.8.26 Application security requirements partial match
prevents

Application security requirements can mandate HttpOnly on sensitive cookies.

A.8.28 Secure coding partial match
prevents

Secure coding standards explicitly require the HttpOnly flag for sensitive cookies.

References