CVE-2021-33548: Geutebrück and UDP Technology cameras command injection

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 19 September 2026. Confidence: medium.

high priorityRemote code execution on internet-exposed cameras with a public exploit and very high EPSS, though exploitation requires privileged access.

What it is

Multiple camera devices from UDP Technology, Geutebrück and other vendors fail to sanitize input, allowing OS command injection. An authenticated attacker can inject commands that run on the device, giving full control of the camera. The affected firmware versions are not specified in this record.

Impact

An attacker gains remote code execution on the camera with the privileges of the vulnerable service, enabling full compromise of the device and any data or network access it holds.

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 first hold an administrative or similarly privileged account on the device.

Exploitation

Not listed in CISA KEV, but EPSS is 0.5705 (99th percentile) and a public exploit reference is tagged Exploit, indicating active interest and available proof-of-concept code.

What to do

• Apply the vendor firmware updates referenced in CISA ICS advisory ICSA-21-208-03; patch affected cameras first.
• Isolate cameras on a dedicated VLAN with no route to corporate or internet networks.
• Change default and weak administrative credentials and restrict management interfaces to trusted hosts.
• Disable unused services and remote management features on the devices.
• Monitor vendor advisories for end-of-life models that will not receive a fix and plan replacement.

Detection

• Alert on unexpected outbound connections or command-shell activity originating from camera IP addresses.
• Monitor camera management logs for anomalous authenticated requests or repeated failed logins preceding command execution.
• Use network monitoring to detect known exploit patterns against camera HTTP interfaces.
• Baseline normal camera traffic and flag deviations such as new listening ports or processes.

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