XML external entity injection in Schneider Electric OPC Factory Server
Priority LOW 24CWE-611Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-611 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0017 6th percentileScored 2026-11-07
Fix Fixed OPC Factory Server (OFS) (Schneider Electric): V3.63SP2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Schneider Electric | OPC Factory Server (OFS) | before V3.63SP2 | V3.63SP2 | Patch available | CNA |
- OPC Factory Server (OFS) VendorSchneider Electric Affected before V3.63SP2 Fixed in V3.63SP2 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:schneider-electric:opc_factory_server:*:*:*:*:*:*:*:* | before 3.63 | Vulnerable | Schneider Electric |
| cpe:2.3:a:schneider-electric:opc_factory_server:3.63:-:*:*:*:*:*:* | 3.63 | Vulnerable | Schneider Electric |
- cpe:2.3:a:schneider-electric:opc_factory_server:*:*:*:*:*:*:*:* Versions before 3.63 Vulnerable ·Schneider Electric
- cpe:2.3:a:schneider-electric:opc_factory_server:3.63:-:*:*:*:*:*:* Versions 3.63 Vulnerable ·Schneider Electric
Remediation
- Fix · CNA OPC Factory Server (OFS) (Schneider Electric) Fixed in V3.63SP2
Timeline
- 2026-10-02 Threatist record created from CVE-2023-2161
- 2026-10-03 Alias added: GHSA-5c28-8ww8-7qf3
References
More Schneider Electric Opc Factory Server vulnerabilities
- TI-2013-00553 Multiple stack-based buffer overflows in ModbusDrv.exe in Schneider Electric Modbus… CVSS 2.0HIGH 9.3
- TI-2011-02945 Buffer overflow in the UnitelWay Windows Device Driver, as used in Schneider Electric… CVSS 2.0HIGH 7.2
- TI-2015-00926 Uncontrolled search path in Schneider Electric OFS v3.5 CVSS 3.0HIGH 7.3
- TI-2014-00722 Schneider Electric OFS Stack Buffer Overflow CVSS 2.0MEDIUM 6.9
Sources
- CVE-2023-2161 · CVE Program
- CVE-2023-2161 · NVD
- FIRST EPSS
- GHSA-5c28-8ww8-7qf3 · GitHub Advisory Database · CC BY 4.0
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