CVE-2023-1617

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Improper Authentication vulnerability in B&R Industrial Automation B&R VC4 (VNC-Server modules). This vulnerability may allow an unauthenticated network-based attacker to bypass the authentication mechanism of the VC4 visualization on affected devices. The impact of this vulnerability depends on the functionality provided in the visualization. This issue affects B&R VC4: from 3.* through 3.96.7, from 4.0* through 4.06.7, from 4.1* through 4.16.3, from 4.2* through 4.26.8, from 4.3* through 4.34.6, from 4.4* through 4.45.1, from 4.5* through 4.45.3, from 4.7* through 4.72.9.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
B&R Industrial Automation	B&R VC4	>= 3., <= 3.96.7; >= 4.0, <= 4.06.7; >= 4.1, <= 4.16.3; >= 4.2, <= 4.26.8; >= 4.3, <= 4.34.6; >= 4.4, <= 4.45.1; >= 4.5, <= 4.45.3; >= 4.7, <= 4.72.9

References

Timeline

Published: Apr 14, 2023
Last modified: Jun 17, 2026
NVD status: Modified

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