CVE-2023-32787

ALTO 7.5CVE-2023-32787 · Published 15/05/2023 · updated 17/06/2026

In breve

CVE-2023-32787 è una vulnerabilità ALTO (CVSS 7.5) che riguarda ua java legacy (opcfoundation), ua historian (prosysopc), ua modbus server (prosysopc).
Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 1.2%, superiore al 67.4% delle vulnerabilità.
Correzione: aggiornare a 2023-04-28, 1.2.0, 1.4.20, 5.4.2 o successiva.

Package	Affected versions	Patched versions
ua java legacy opcfoundation	`< 2023-04-28`	`2023-04-28`
ua historian prosysopc	`< 1.2.0`	`1.2.0`
ua modbus server prosysopc	`< 1.4.20`	`1.4.20`
ua simulation server prosysopc	`< 5.4.2`	`5.4.2`

Description

The OPC UA Legacy Java Stack before 6f176f2 enables an attacker to block OPC UA server applications via uncontrolled resource consumption so that they can no longer serve client applications.

References

files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2023-32787.pdf · Patch
OPCFoundation/UA-Java-Legacy · Product
OPCFoundation/UA-Java-Legacy commit 6f176f2 · Patch

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