CVE-2025-55249Network attack vector

Service interruption via missing response headers

Published Jan 19, 2026 · Updated Jan 19, 2026

Protection mechanism failure in HCL AION 2 allows remote authenticated users to interrupt service through crafted web interactions. The web response path omits standard security headers, but HCL has not identified the affected endpoints, header names, or response-generation component. Exploitation requires low privileges and user interaction, and the exact service-interruption mode remains undisclosed.

CVSS severity3.5
Low
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Protection mechanism failure in HCL AION 2 allows remote authenticated users to interrupt service through crafted web interactions. The web response path omits standard security headers, but HCL has not identified the affected endpoints, header names, or response-generation component. Exploitation requires low privileges and user interaction, and the exact service-interruption mode remains undisclosed.

The record

CVE
CVE-2025-55249
Published
Jan 19, 2026
Updated
Jan 19, 2026
Vendor
HCL Software
Product
HCL AION
Classifications
CWE-693
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 19, 2026Record 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=2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HCL Software · HCL AIONversion=2

Published CVSS scores

3.5HCL SoftwareCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure

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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