CVE-2026-0781
📋 TL;DR
This vulnerability allows authenticated remote attackers to execute arbitrary system commands on ALGO 8180 IP Audio Alerter devices through the web interface. Attackers can gain full control of affected devices by injecting malicious commands into user input fields. Organizations using these devices for audio alerting systems are affected.
💻 Affected Systems
- ALGO 8180 IP Audio Alerter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to install persistent backdoors, pivot to internal networks, disrupt audio alerting systems, or use devices as botnet nodes.
Likely Case
Attackers with valid credentials execute commands to steal configuration data, modify device settings, or disrupt audio alerting functionality.
If Mitigated
With proper network segmentation and strong authentication, impact limited to isolated device compromise without network pivot opportunities.
🎯 Exploit Status
Authentication required but command injection is straightforward once authenticated. ZDI has advisory but no public exploit code.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific version
Vendor Advisory: https://www.zerodayinitiative.com/advisories/ZDI-26-003/
Restart Required: Yes
Instructions:
1. Check vendor website for firmware update
2. Download latest firmware version
3. Backup current configuration
4. Upload firmware via web interface
5. Reboot device after update
🔧 Temporary Workarounds
Network Segmentation
linuxIsolate ALGO devices from internet and restrict internal network access
iptables -A INPUT -s [trusted_networks] -p tcp --dport 80 -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
Strong Authentication
allEnforce complex passwords and disable default credentials
🧯 If You Can't Patch
- Segment device network and restrict to necessary IPs only
- Implement web application firewall with command injection rules
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisory. Test with controlled command injection if authorized.Check Version:
Check web interface System Information page or vendor-specific CLI commandVerify Fix Applied:
Verify firmware version matches patched version from vendor. Test command injection attempts fail.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed login attempts followed by successful login
- Web UI requests with shell metacharacters
Network Indicators:
- Unusual outbound connections from ALGO device
- Traffic to unexpected ports from device IP
SIEM Query:
source="algo_device" AND (url="*;*" OR url="*|*" OR url="*`*" OR url="*$(*")