CVE-2025-61945: Radiometrics VizAir Auth Bypass Flaw

CVE-2025-61945 Overview

CVE-2025-61945 is a critical authentication bypass vulnerability affecting Radiometrics VizAir weather monitoring systems. The vulnerability allows any remote attacker to access the admin panel of the VizAir system without authentication. Once inside, the attacker can modify critical weather parameters such as wind shear alerts, inversion depth, and CAPE values, which are essential for accurate weather forecasting and flight safety. This unauthorized access could result in the disabling of vital alerts, causing hazardous conditions for aircraft, and manipulating runway assignments, which could result in mid-air conflicts or runway incursions.

Critical Impact

Unauthenticated remote access to the VizAir admin panel enables attackers to manipulate critical aviation weather safety systems, potentially causing mid-air conflicts or runway incursions through disabled alerts and falsified weather data.

Affected Products

• Radiometrics VizAir (all versions)

Discovery Timeline

• 2025-11-04 - CVE-2025-61945 published to NVD
• 2025-11-12 - Last updated in NVD database

Technical Details for CVE-2025-61945

Vulnerability Analysis

This vulnerability is classified as CWE-306 (Missing Authentication for Critical Function), representing a fundamental security architecture flaw in the VizAir system. The admin panel, which provides full control over weather monitoring parameters and alert configurations, lacks any authentication mechanism to verify user identity before granting access.

The impact is particularly severe given VizAir's role in aviation safety. Weather monitoring systems at airports rely on accurate data for wind shear alerts, inversion depth measurements, and Convective Available Potential Energy (CAPE) values to ensure safe flight operations. An attacker exploiting this vulnerability could disable critical safety alerts or manipulate weather parameters to show false readings, potentially leading to catastrophic aviation incidents.

Root Cause

The root cause of CVE-2025-61945 is the complete absence of authentication controls on the VizAir administrative interface. The system accepts connections to the admin panel from any network-accessible client without requiring credentials, session tokens, or any form of identity verification. This design flaw violates fundamental security principles for critical infrastructure systems.

Attack Vector

The attack vector is network-based and requires no user interaction or special privileges. An attacker with network access to the VizAir system can directly navigate to the administrative interface and gain immediate access. The attack can be executed remotely over the network without any prerequisites beyond basic connectivity to the target system.

The exploitation flow involves:

1. Network reconnaissance to identify VizAir systems
2. Direct access to the admin panel URL/interface
3. Immediate administrative access without credential prompts
4. Modification of weather parameters, alert thresholds, or system configurations

No verified code examples are available for this vulnerability. The attack methodology involves accessing the VizAir administrative interface directly over the network, where the system fails to enforce any authentication checks before granting administrative privileges. For detailed technical information, refer to the CISA ICS Advisory.

Detection Methods for CVE-2025-61945

Indicators of Compromise

• Unauthorized access logs to the VizAir admin panel from unexpected IP addresses or network segments
• Configuration changes to weather alert thresholds (wind shear, CAPE values, inversion depth) without corresponding authorized change requests
• Abnormal access patterns such as admin panel connections outside normal operational hours
• Network traffic to VizAir systems from external or untrusted sources

Detection Strategies

• Implement network monitoring to detect and alert on any connections to VizAir administrative interfaces from unauthorized network segments
• Deploy IDS/IPS rules to identify access attempts to VizAir admin panel endpoints
• Enable comprehensive logging on VizAir systems and forward logs to a SIEM for correlation and analysis
• Monitor for configuration drift by regularly comparing current weather parameter settings against known-good baselines

Monitoring Recommendations

• Establish network segmentation monitoring to verify VizAir systems remain isolated from untrusted networks
• Configure alerts for any administrative actions performed on VizAir systems to enable rapid response to unauthorized changes
• Implement file integrity monitoring on VizAir configuration files to detect unauthorized modifications
• Regularly audit access logs and compare against authorized personnel lists

How to Mitigate CVE-2025-61945

Immediate Actions Required

• Immediately isolate VizAir systems from public networks and restrict access to authorized internal networks only
• Implement network-level access controls (firewalls, ACLs) to limit connectivity to VizAir admin interfaces to approved IP addresses
• Deploy a VPN or jump server requirement for all administrative access to VizAir systems
• Enable all available logging and auditing features on VizAir systems pending a permanent fix

Patch Information

Organizations should consult the CISA ICS Advisory ICSA-25-308-04 for official vendor guidance and patch availability. Contact Radiometrics directly for firmware updates or security patches that address the authentication bypass vulnerability.

Workarounds

• Deploy a reverse proxy with authentication (such as OAuth, LDAP, or certificate-based authentication) in front of the VizAir admin interface
• Implement strict network segmentation to place VizAir systems on isolated network segments accessible only through controlled access points
• Use firewall rules to whitelist only specific authorized IP addresses or MAC addresses that require admin access
• Consider deploying a web application firewall (WAF) with authentication enforcement capabilities as an interim protective measure

# Example network isolation using iptables
# Restrict access to VizAir admin panel (example port 443) to authorized management network only
iptables -A INPUT -p tcp --dport 443 -s 10.10.50.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP

# Log all connection attempts for monitoring
iptables -A INPUT -p tcp --dport 443 -j LOG --log-prefix "VizAir-Access: "