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Fencer Vulns
high 8.3

CVE-2024-0220 json

B&R products use insufficient communication encryption

published 2024-02-22 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-16019

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 30%
public exploits
0
none known

Summary

B&R Automation Studio Upgrade Service and B&R Technology Guarding use insufficient cryptography for communication to the upgrade and the licensing servers. A network-based attacker could exploit the vulnerability to execute arbitrary code on the products or sniff sensitive data.

Patch / fix

  • B&R Industrial Automation Automation Studio 4.6
  • B&R Industrial Automation Technology Guarding 1.4.0
  • br-automation automation_studio 4.6

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • B&R Industrial Automation Automation Studio
  • B&R Industrial Automation Technology Guarding
  • br-automation automation_studio

Classification

Weakness
  • CWE-1240 Use of a Cryptographic Primitive with a Risky Implementation
  • CWE-319 Cleartext Transmission of Sensitive Information
  • CWE-94 Improper Control of Generation of Code

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.