CVE-2023-32787

HIGH
7.5
CVSS Score
Published: May 15, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:59 AM UTC
4 products affected across 2 vendorsUA Simulation ServerUA Modbus ServerUa Java Legacy

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2023-04-28
Affected range stops below 2023-04-28, so it looks safe — our inference, not a vendor statement
v < 1.2.0
Affected range stops below 1.2.0, so it looks safe — our inference, not a vendor statement
v < 1.4.20
Affected range stops below 1.4.20, so it looks safe — our inference, not a vendor statement
v < 5.4.2
Affected range stops below 5.4.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400

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