CVE-2021-33544: Geutebrück and UDP Technology IP cameras command injection

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 18 September 2026. Confidence: medium.

high priorityNetwork-reachable command injection with full CIA impact and very high EPSS, though exploitation requires high privileges and no KEV listing exists.

What it is

Multiple Geutebrück G-Cam and G-Code camera firmware images (and other UDP Technology-based devices) are vulnerable to OS command injection. An authenticated attacker with high privileges can inject commands that execute on the device, giving full control of the camera. The flaw matters because these devices sit on networks and can be used as a foothold or for surveillance manipulation.

Impact

An attacker gains arbitrary command execution on the camera with the privileges of the vulnerable service, allowing full compromise of confidentiality, integrity and availability of the device.

Attack surface

Reachable over the network (AV:N) with no user interaction (UI:N), but the CVSS vector requires high privileges (PR:H), so an attacker must already hold an administrative-level account on the device.

Exploitation

Not listed in CISA KEV, but EPSS is very high (0.953, 99.86th percentile) and a public exploit reference exists, indicating active interest and likely weaponization.

What to do

• Apply the vendor firmware updates referenced in CISA ICS advisory ICSA-21-208-03 as soon as possible.
• Restrict camera management interfaces to trusted networks and never expose them directly to the internet.
• Enforce strong unique credentials and remove or disable unused accounts to reduce the PR:H barrier.
• Segment cameras on isolated VLANs with strict egress filtering so a compromised device cannot pivot.
• Monitor vendor advisories for these UDP Technology-based models and replace end-of-support units.

Detection

• Alert on unexpected outbound connections or shell-like traffic originating from camera VLANs.
• Review camera and web server logs for command-injection patterns or unusual POST parameters.
• Monitor for new or modified processes and files on camera firmware where host telemetry is available.
• Track authentication events for admin accounts on these devices for anomalous logins.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.