CVE-2025-12554Network attack vector

Session sidejacking via missing HTTP security headers

Published Oct 31, 2025 · Updated Oct 31, 2025

Missing HTTP security headers in Azure Access Technology BLU-IC2 and BLU-IC4 through 1.19.5 allow remote attackers to hijack web sessions. The vendor identifies neither the omitted headers nor the affected HTTP endpoints, but the CNA maps the weakness to session sidejacking. Network access requires no authentication or user interaction; a captured session token can impersonate its user and permit unauthorized controller actions.

CVSS severity6.9
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing HTTP security headers in Azure Access Technology BLU-IC2 and BLU-IC4 through 1.19.5 allow remote attackers to hijack web sessions. The vendor identifies neither the omitted headers nor the affected HTTP endpoints, but the CNA maps the weakness to session sidejacking. Network access requires no authentication or user interaction; a captured session token can impersonate its user and permit unauthorized controller actions.

The record

CVE
CVE-2025-12554
Published
Oct 31, 2025
Updated
Oct 31, 2025
Vendor
Azure Access Technology
Product
BLU-IC4
Classifications
CWE-693, CAPEC-102, T1539
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
6.9Azure Access TechnologyCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
CAPEC-102Session Sidejacking
T1539Steal Web Session Cookie

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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