CVE-2025-62347: HCL iControl Auth Bypass Vulnerability

CVE-2025-62347 Overview

CVE-2025-62347 affects HCL iControl through an improper input validation flaw [CWE-20]. The product does not properly verify whether received input matches the expected type. Authenticated attackers can trigger unexpected system behavior and bypass security controls through the network attack vector. The issue stems from an implementation flaw in an architectural security tactic within iControl's input handling logic.

Critical Impact
A network-adjacent attacker with low privileges can submit malformed input to induce unexpected behavior and partial integrity impact in HCL iControl, potentially enabling security control bypass.

Affected Products

HCL iControl (version details not published in the NVD entry)
Refer to the HCL Software Knowledge Base Article for the authoritative list of affected releases

Discovery Timeline

2026-07-31 - CVE-2025-62347 published to the National Vulnerability Database (NVD)
2026-07-31 - Last updated in the NVD database

Technical Details for CVE-2025-62347

Vulnerability Analysis

CVE-2025-62347 is an improper input validation defect [CWE-20] in HCL iControl. The application accepts input without confirming that its type matches what the receiving component expects. When a request carries data of an unexpected type, downstream logic processes it under incorrect assumptions. This produces unexpected system behavior and can bypass security checks that depend on well-formed input.

Exploitation requires network access and a low-privileged authenticated session. User interaction is not required. Successful exploitation impacts integrity in a limited way; confidentiality and availability are not directly affected according to the published vector.

The underlying weakness reflects a broader architectural gap. Input validation is applied inconsistently across the security tactic that should enforce type safety. Attackers craft inputs that pass initial parsing but violate assumptions later in the processing pipeline. This class of flaw is commonly used to skip authorization checks, alter workflow state, or trigger error paths that leak internal behavior.

Root Cause

The root cause is missing or incomplete type validation on inbound parameters. HCL iControl assumes input conforms to an expected schema without programmatically enforcing that contract. When the received value is of a different type than expected, the code path continues executing rather than rejecting the request.

Attack Vector

The attack vector is network-based. An authenticated attacker with low privileges sends a crafted request to an exposed iControl interface. The payload contains parameters whose types deviate from what the endpoint expects. Because the validation layer does not enforce type constraints, the request reaches internal logic and drives it into an unintended state.

No public proof-of-concept, exploit code, or CISA KEV listing exists for CVE-2025-62347 at the time of writing. Verified code examples are not available; refer to the vendor knowledge base for technical remediation details.

Detection Methods for CVE-2025-62347

Indicators of Compromise

Requests to HCL iControl endpoints containing parameters whose types deviate from the documented API schema
Application error entries referencing type coercion failures, unexpected casts, or parsing exceptions
Successful authenticated actions that follow a burst of malformed or schema-violating requests from the same session

Detection Strategies

Compare inbound iControl request payloads against the published API schema and alert on type mismatches
Correlate low-privileged user sessions with unusual sequences of administrative or state-changing operations
Baseline normal iControl API usage per account, then alert on deviations in parameter shape or endpoint frequency

Monitoring Recommendations

Forward iControl application, access, and audit logs to a centralized SIEM for retention and correlation
Monitor for authentication events from low-privileged accounts followed by privileged actions within a short window
Track process, network, and file activity on iControl hosts to identify post-exploitation behavior after any bypass attempt

How to Mitigate CVE-2025-62347

Immediate Actions Required

Review the HCL Software Knowledge Base Article and apply the vendor's guidance for CVE-2025-62347
Restrict network reachability of iControl management interfaces to trusted administrative networks only
Audit iControl accounts and remove or downgrade unused low-privileged accounts that could be leveraged by an attacker
Enable verbose logging on iControl to capture malformed request patterns during the remediation window

Patch Information

HCL has published remediation guidance for CVE-2025-62347 in HCL Software Knowledge Base article KB0132395. Administrators should consult this article for fixed versions, upgrade paths, and any interim configuration changes required to close the improper input validation flaw.

Workarounds

Place iControl behind a reverse proxy or web application firewall configured to enforce strict schema and type validation on inbound requests
Apply network segmentation and access control lists so only authorized administrative hosts can reach iControl endpoints
Enforce strong authentication and rotate credentials for any account with iControl access until patches are applied

bash

# Example: restrict access to iControl management interface with iptables
# Replace 10.0.0.0/24 with your trusted administrative subnet
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP