How severe is CVE-2011-4860?

CVE-2011-4860 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2011-4860 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4860?

CVE-2011-4860 primarily affects Schneider-electric Quantum Ethernet Module 140noe77100. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4860?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2011-4860 published?

CVE-2011-4860 was published on 2011-12-17 and last updated on 2026-06-16.

CVE-2011-4860

CVE-2011-4860 is a critical-severity vulnerability in Schneider-electric Quantum Ethernet Module 140noe77100 with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Schneider-electric Quantum Ethernet Module 140noe77100
Published: 2011-12-17
Last modified: 2026-06-16

Description

The ComputePassword function in the Schneider Electric Quantum Ethernet Module on the NOE 771 device (aka the Quantum 140NOE771* module) generates the password for the fwupgrade account by performing a calculation on the MAC address, which makes it easier for remote attackers to obtain access via a (1) ARP request message or (2) Neighbor Solicitation message.

Frequently asked questions

What is CVE-2011-4860?: The ComputePassword function in the Schneider Electric Quantum Ethernet Module on the NOE 771 device (aka the Quantum 140NOE771* module) generates the password for the fwupgrade account by performing a calculation on the MAC address, which makes it easier for remote attackers to obtain access via a (1) ARP request message or (2) Neighbor Solicitation message.
How severe is CVE-2011-4860?: CVE-2011-4860 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2011-4860 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4860?: CVE-2011-4860 primarily affects Schneider-electric Quantum Ethernet Module 140noe77100. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4860?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-4860 published?: CVE-2011-4860 was published on 2011-12-17 and last updated on 2026-06-16.

References

http://reversemode.com/index.php?option=com_content&task=view&id=80&Itemid=1

Affected products (3)

cpe:2.3:a:schneider-electric:quantum_ethernet_module_140noe77100:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:quantum_ethernet_module_140noe77101:*:*:*:*:*:*:*:*
cpe:2.3:a:schneider-electric:quantum_ethernet_module_140noe77111:*:*:*:*:*:*:*:*

More vulnerabilities in Schneider-electric Quantum Ethernet Module 140noe77100

CVE-2011-4861 — Critical (CVSS 10.0): The modbus_125_handler function in the Schneider Electric Quantum Ethernet Module on the NOE 771 device (aka the…
CVE-2011-4859 — Critical (CVSS 10.0): The Schneider Electric Quantum Ethernet Module, as used in the Quantum 140NOE771* and 140CPU65* modules, the Premium…

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