CVE-2023-2161

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-16 · updated 2026-06-17
Weakness: CWE-611

Description

A CWE-611: Improper Restriction of XML External Entity Reference vulnerability exists that could cause unauthorized read access to the file system when a malicious configuration file is loaded on to the software by a local user.

Affected products

Schneider Electric OPC Factory Server (OFS): before 3.63; 3.63 — fixed in 3.63

How to fix

Upgrade to a fixed version: Schneider Electric OPC Factory Server (OFS) 3.63. Check the vendor advisory for mitigations.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-129-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-129-01.pdf
https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-129-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-129-01.pdf

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