CVE-2025-11544
📋 TL;DR
This vulnerability allows attackers to bypass firmware integrity checks on Sharp Display Solutions projectors, enabling them to install and execute unauthorized malicious firmware. This affects organizations using these projectors in corporate, educational, or public display environments where projectors are network-connected.
💻 Affected Systems
- Sharp Display Solutions projectors
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of projector functionality, enabling persistent malware installation, unauthorized surveillance via connected cameras/microphones, network pivoting to internal systems, and physical damage through firmware manipulation.
Likely Case
Unauthorized firmware modification leading to service disruption, display manipulation, credential theft from connected devices, and potential use as network foothold for lateral movement.
If Mitigated
Limited impact if projectors are air-gapped or on isolated networks with strict access controls, though physical access risks remain.
🎯 Exploit Status
Exploitation requires knowledge of firmware update process and ability to craft malicious firmware; network access to projector management interface needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware updates available per vendor advisory
Vendor Advisory: https://sharp-displays.jp.sharp/global/support/info/PJ-CVE-2025-11544.html
Restart Required: Yes
Instructions:
1. Visit Sharp Display Solutions support site. 2. Download latest firmware for your projector model. 3. Follow vendor instructions to update firmware via USB or network. 4. Verify firmware version after update. 5. Restart projector.
🔧 Temporary Workarounds
Network Isolation
allPlace projectors on isolated VLAN with strict firewall rules blocking external access
Disable Network Services
allTurn off unnecessary network services on projectors if not required for operation
🧯 If You Can't Patch
- Physically disconnect projectors from networks when not actively updating
- Implement strict physical access controls to projector locations
🔍 How to Verify
Check if Vulnerable:
Check projector firmware version via web interface or physical menu against vendor advisoryCheck Version:
Access projector web interface at http://[projector-ip] and navigate to Information/System Status menuVerify Fix Applied:
Confirm firmware version matches patched version listed in vendor advisory📡 Detection & Monitoring
Log Indicators:
- Unexpected firmware update attempts
- Unauthorized access to projector management interface
- Firmware version changes without authorized maintenance
Network Indicators:
- Unusual network traffic to projector management ports (typically 80, 443, 5353)
- Firmware download attempts from unauthorized sources
SIEM Query:
source="projector_logs" AND (event="firmware_update" OR event="unauthorized_access")