Code execution via unrestricted malicious file upload
Published Jan 19, 2026 · Updated Jan 19, 2026
Unrestricted file upload in HCL AION 2 allows local users with administrative access to submit files for unauthorized code execution. HCL has not disclosed the affected upload handler, accepted file types, storage path, or the validation operation that fails to reject dangerous content. Exploitation requires high privileges and user interaction; the vendor identifies unauthorized code execution or system compromise as the resulting risk.
Summary
What happened
Unrestricted file upload in HCL AION 2 allows local users with administrative access to submit files for unauthorized code execution. HCL has not disclosed the affected upload handler, accepted file types, storage path, or the validation operation that fails to reject dangerous content. Exploitation requires high privileges and user interaction; the vendor identifies unauthorized code execution or system compromise as the resulting risk.
The record
- CVE
- CVE-2025-55251
- Published
- Jan 19, 2026
- Updated
- Jan 19, 2026
- Vendor
- HCL Software
- Product
- HCL AION
- Classifications
- CWE-434
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Jan 19, 2026CVE publishedPublication date reported by the CVE source.
- 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?
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- Affected versionversion=2
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
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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