CVE-2026-32648: Anviz CX2 Lite/CX7 Info Disclosure Flaw

CVE-2026-32648 Overview

CVE-2026-32648 is an Information Disclosure vulnerability affecting Anviz CX2 Lite and CX7 devices. The vulnerability allows unauthenticated attackers to access debug configuration details remotely, including sensitive information such as SSH and RTTY service status. This information disclosure significantly assists attackers in performing reconnaissance against affected devices, potentially facilitating further exploitation.

Critical Impact

Unauthenticated remote access to debug configuration details enables attackers to map device services and identify additional attack vectors for reconnaissance and follow-on attacks against industrial control systems.

Affected Products

• Anviz CX2 Lite
• Anviz CX7

Discovery Timeline

• 2026-04-17 - CVE-2026-32648 published to NVD
• 2026-04-20 - Last updated in NVD database

Technical Details for CVE-2026-32648

Vulnerability Analysis

This vulnerability is classified under CWE-862 (Missing Authorization). The affected Anviz devices fail to implement proper authorization checks when serving debug configuration endpoints. This missing authorization control allows any network-accessible attacker to retrieve sensitive system configuration information without providing any credentials.

The exposed debug configuration details include operational status of critical services such as SSH and RTTY (Remote Terminal Tool for the Web). Knowledge of which services are active on a device provides attackers with valuable intelligence for planning subsequent attacks, such as identifying open administrative interfaces or targeting specific service vulnerabilities.

Root Cause

The root cause of CVE-2026-32648 lies in the absence of authentication and authorization mechanisms protecting debug configuration endpoints on Anviz CX2 Lite and CX7 devices. The web interface or API serving these configuration details does not validate whether the requesting user has appropriate permissions to access this sensitive information.

Attack Vector

The attack vector for this vulnerability is network-based. An attacker with network access to the affected Anviz device can send unauthenticated HTTP requests to retrieve debug configuration information. The attack requires no user interaction and can be executed with low complexity.

The exploitation flow typically involves:

1. Network discovery to identify Anviz CX2 Lite or CX7 devices
2. Direct HTTP requests to debug configuration endpoints without authentication
3. Extraction of service status information (SSH, RTTY, etc.)
4. Use of gathered intelligence to plan further attacks against enabled services

Since no code examples are available for this vulnerability, technical exploitation details can be found in the CISA ICS Advisory ICSA-26-106-03.

Detection Methods for CVE-2026-32648

Indicators of Compromise

• Anomalous HTTP requests to debug or configuration endpoints on Anviz devices
• Unusual access patterns to device web interfaces from unexpected source IPs
• Reconnaissance-style network scanning targeting Anviz device ports
• Sequential probing of multiple configuration endpoints without authentication

Detection Strategies

• Monitor network traffic for unauthenticated requests to Anviz device management interfaces
• Implement network-based intrusion detection rules for access attempts to known debug endpoints
• Deploy web application firewall rules to detect and block suspicious configuration disclosure attempts
• Correlate access logs from Anviz devices with SIEM solutions for anomaly detection

Monitoring Recommendations

• Enable and centralize logging for all Anviz device web interface access
• Monitor for reconnaissance patterns such as port scanning targeting Anviz device services
• Alert on any unauthenticated access attempts to administrative or debug endpoints
• Establish baseline network traffic patterns to Anviz devices for anomaly detection

How to Mitigate CVE-2026-32648

Immediate Actions Required

• Restrict network access to Anviz CX2 Lite and CX7 devices using firewall rules or network segmentation
• Place affected devices behind a VPN or other access control mechanism
• Disable unnecessary services (SSH, RTTY) if not required for operations
• Audit network logs for evidence of prior exploitation or reconnaissance activity

Patch Information

Contact Anviz directly for firmware updates and security patches addressing this vulnerability. Refer to the CISA ICS Advisory ICSA-26-106-03 for the latest remediation guidance. For vendor support, visit the Anviz Contact Page.

Workarounds

• Implement network segmentation to isolate Anviz devices from untrusted networks
• Deploy a reverse proxy with authentication in front of Anviz device web interfaces
• Use access control lists (ACLs) to limit device access to authorized management stations only
• Disable or block access to debug endpoints at the network level if possible

# Example firewall rule to restrict access to Anviz devices
# Allow only authorized management subnet
iptables -A INPUT -s 10.10.10.0/24 -d [ANVIZ_DEVICE_IP] -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -s 10.10.10.0/24 -d [ANVIZ_DEVICE_IP] -p tcp --dport 443 -j ACCEPT
iptables -A INPUT -d [ANVIZ_DEVICE_IP] -p tcp --dport 80 -j DROP
iptables -A INPUT -d [ANVIZ_DEVICE_IP] -p tcp --dport 443 -j DROP