Read the docs
TI-2012-00856 Aliases CVE-2012-0931GHSA-348g-3f7x-jvgj

Schneider Electric Modicon Quantum PLC does not perform authentication between the Unity…

Priority MEDIUM 50CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

Schneider Electric Modicon Quantum PLC does not perform authentication between the Unity software and PLC, which allows remote attackers to cause a denial of service or possibly execute arbitrary code via unspecified vectors.

Why it matters now

EPSS 0.04822 92nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:h:schneider-electric:modicon_quantum_plc:-:*:*:*:*:*:*:*not specified by NVDVulnerableSchneider Electric
  • cpe:2.3:h:schneider-electric:modicon_quantum_plc:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Schneider Electric

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-0931
  2. 2026-10-03 Alias added: GHSA-348g-3f7x-jvgj

References

  • TI-2013-00555 The FactoryCast service on the Schneider Electric Quantum 140NOE77111 and 140NWM10000… CVSS 2.0HIGH 8.5
  • TI-2012-00854 Multiple buffer overflows in Schneider Electric Modicon Quantum PLC allow remote… CVSS 3.1HIGH 7.5
  • TI-2013-00554 Cross-site request forgery (CSRF) vulnerability on the Schneider Electric Quantum… CVSS 2.0MEDIUM 6.8
  • TI-2012-00855 Cross-site scripting (XSS) vulnerability in Schneider Electric Modicon Quantum PLC allows… CVSS 3.1MEDIUM 6.1

Sources