CVE-2021-33549: UDP Technology/Geutebrück camera devices: Buffer overflow in action parameter leading to RCE

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 9 Oct 2023. It cites 1 public report, the first from 9 Oct 2023.

• fortinet.com

How likely is exploitation in the next 30 days?

67.3%

EPSS score, percentile 99.3 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

7.2 High

CVSS v3.1 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• EBC-21xx 1.12.13.2
• EBC-21xx 1.12.14.5
• EFD-22xx 1.12.13.2
• EFD-22xx 1.12.14.5
• ETHC-22xx 1.12.13.2
• ETHC-22xx 1.12.14.5

and 12 more in the table below

Versions by product

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

UDP Technology/Geutebrück camera devices: Buffer overflow in action parameter leading to RCE

Multiple camera devices by UDP Technology, Geutebrück and other vendors are vulnerable to a stack-based buffer overflow condition in the action parameter, which may allow an attacker to remotely execute arbitrary code.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline