CVE-2025-52627
Published: 03 February 2026
Summary
CVE-2025-52627 is a medium-severity Incorrect Permission Assignment for Critical Resource (CWE-732) vulnerability in Hcltech Aion. Its CVSS base score is 5.5 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Linux and Mac Permissions (T1222.002); ranked at the 13.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Procedures support proper permission assignment for critical resources through documented controls.
Attribute management for resources provides a mechanism to assign and maintain correct permissions based on security labels.
Prevents overly permissive assignments to critical resources by limiting to task needs.
Training policy covers correct permission assignment, reducing the ability to exploit incorrect permission assignments for critical resources.
Training on permission management reduces incorrect permission assignments for critical resources.
Audit logs and logging tools are critical resources whose protection requires correct permission assignments to block unauthorized actions.
Assessments review permission assignments on critical resources to confirm correctness, mitigating exploitation via incorrect permissions.
Certification includes checking that permissions on critical resources are correctly assigned.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Root FS mounted without read-only directly enables unauthorized modification of critical files due to incorrect permissions (CWE-732), mapping to T1222.002.
NVD Description
Root File System Not Mounted as Read-Only configuration vulnerability. This can allow unintended modifications to critical system files, potentially increasing the risk of system compromise or unauthorized changes.This issue affects AION: 2.0.
Deeper analysisAI
CVE-2025-52627 is a configuration vulnerability in which the root file system is not mounted as read-only, allowing unintended modifications to critical system files and potentially increasing the risk of system compromise or unauthorized changes. This issue affects AION version 2.0 and is associated with CWE-732 (Incorrect Permission Assignment for Critical Resource). The vulnerability has a CVSS v3.1 base score of 5.5, reflecting medium severity.
Exploitation requires physical access to the system (AV:P), high attack complexity (AC:H), low privileges (PR:L), and user interaction (UI:R), with an unchanged impact scope (S:U). A successful attacker could achieve high confidentiality (C:H) and integrity (I:H) impacts, such as unauthorized reading or modification of sensitive data, but with no availability impact (A:N).
HCL Software has published a knowledge base article (KB0127972) addressing this vulnerability, available at https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0127972, which likely provides guidance on mitigation or remediation steps.
Details
- CWE(s)