CVE-2012-0931

Name: CVE-2012-0931
Creator: NVD / NIST
Published: 2012-01-28T01:55:01.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 4.92%

Last modified Jun 16, 2026

CVE-2012-0931 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 4.92% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

4.92%

91.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Schneider-Electric	Modicon Quantum Plc	All versions

References

http://secunia.com/advisories/47723Not Applicable
http://www.securityfocus.com/bid/51605Third Party Advisory, VDB Entry
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-12-020-03.pdfBroken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/72586Third Party Advisory, VDB Entry
https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-12-020-03Third Party Advisory, US Government Resource
http://secunia.com/advisories/47723Not Applicable
http://www.securityfocus.com/bid/51605Third Party Advisory, VDB Entry
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-12-020-03.pdfBroken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/72586Third Party Advisory, VDB Entry
https://us-cert.cisa.gov/ics/alerts/ICS-ALERT-12-020-03Third Party Advisory, US Government Resource

Timeline

Published: Jan 28, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2012-0931?

How severe is CVE-2012-0931?

CVE-2012-0931 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 4.92% probability of exploitation in the next 30 days.

How do I fix CVE-2012-0931?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2012-0931?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST