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Fencer Vulns
critical 9.8

CVE-2021-33543 in the critical feed json

UDP Technology/Geutebrück camera devices: Authentication Bypass

published 2021-09-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-20235

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
81.3%
EPSS 81.3% chance of exploitation in 30 days, percentile 99.6%
public exploits
1
Metasploit

Summary

Multiple camera devices by UDP Technology, Geutebrück and other vendors allow unauthenticated remote access to sensitive files due to default user authentication settings. This can lead to manipulation of the device and denial of service.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-208-03 updated cvss 9.8

Geutebrück G-Cam E2 and G-Code

  • Geutebrück EBC-21xx <= 1.12.0.27, 1.12.13.2, 1.12.14.5 Geutebrück EEC-2xx <= 1.12.0.27, 1.12.13.2, 1.12.14.5 Geutebrück EEN-20xx <= 1.12.0.27, 1.12.13.2, 1.12.14.5 Geutebrück EFD-22xx <= 1.12.0.27, 1.12.13.2, 1.12.14.5 Geutebrück ETHC-22xx <= 1.12.0.27, 1.12.13.2, 1.12.14.5 Geutebrück EWPC-22xx <= 1.12.0.27, 1.12.13.2, 1.12.14.5
    affected: mitigation “If updates cannot be deployed, Geutebrück recommends taking the following defensive measures to minimize the risk of exploitation of these vulnerabilities:” gcc02.safelinks.protection.outlook.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. First public exploit (Metasploit exploit/linux/http/geutebruck_cmdinject_cve_2021_335xx)
  2. Published

Exploit prediction

81.34% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Geutebrück E2 Series
  • Geutebrück Encoder G-Code

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.