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CVE-2011-4859

28
FAUCET Score

CVE-2011-4859 describes a critical vulnerability in various Schneider Electric Quantum, Premium, M340, and STB Ethernet modules. These devices utilize numerous hardcoded credentials for accounts such as AUTCSE, ftpuser, and webserver, which can be exploited by remote attackers via TELNET, Windriver Debug, or FTP ports. With a CVSS score of 10.0, this vulnerability presents a severe risk, allowing unauthenticated remote attackers to achieve full compromise (confidentiality, integrity, and availability). Despite its high severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.5CPE matchmatch criteria
cpe:2.3:a:schneider-electric:quantum_ethernet_module_140cpu65150:*:*:*:*:*:*:*:*
<= 3.5CPE matchmatch criteria
cpe:2.3:a:schneider-electric:quantum_ethernet_module_140cpu65160:*:*:*:*:*:*:*:*
<= 3.5CPE matchmatch criteria
cpe:2.3:a:schneider-electric:quantum_ethernet_module_140cpu65260:*:*:*:*:*:*:*:*
<= 3.3CPE matchmatch criteria
cpe:2.3:a:schneider-electric:quantum_ethernet_module_140noe77100:*:*:*:*:*:*:*:*
<= 3.4CPE matchmatch criteria
cpe:2.3:a:schneider-electric:quantum_ethernet_module_140noe77100:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.04%
Probability of exploitation in next 30 days
EPSS Percentile
89.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0404 is in the 81st percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

reversemode.com / index.php
secunia.com / advisories/47723
exchange.xforce.ibmcloud.com / vulnerabilities/72587
securityfocus.com / bid/51605
us-cert.gov / control_systems/pdf/ICSA-12-018-01.pdf
us-cert.gov / control_systems/pdf/ICS-ALERT-11-346-01.pdf
us-cert.gov / control_systems/pdf/ICS-ALERT-12-020-03.pdf