CVE-2023-3825

High

Description

PTC’s KEPServerEX Versions 6.0 to 6.14.263 are vulnerable to being made to read a recursively defined object that leads to uncontrolled resource consumption. KEPServerEX uses OPC UA, a protocol which defines various object types that can be nested to create complex arrays. It does not implement a check to see if such an object is recursively defined, so an attack could send a maliciously created message that the decoder would try to decode until the stack overflowed and the device crashed.

SeverityHigh

CVSS7.5

Exploit probability—

ProductKepware Kepserverex

PublishedJul 31, 2023

First seenJul 31, 2023

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
kepware kepserverex	6.0.0 ≤ v ≤ 6.14.263	—

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