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CVE-2011-3322

83
FAUCET Score

CVE-2011-3322 describes a stack-based buffer overflow vulnerability in the Core Server HMI Service (Coreservice.exe) of Scadatec Limited Procyon SCADA, affecting versions prior to 1.14. This flaw allows remote attackers to trigger a denial of service (crash) and potentially execute arbitrary code by sending an excessively long password to the Telnet (TCP/23) port. With a CVSS score of 10.0, this vulnerability is critical, requiring no authentication and low attack complexity for a complete compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, exploit code is publicly available via a Metasploit module and ExploitDB, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.06CPE matchmatch criteria
cpe:2.3:a:scadatec:procyon_scada:1.06:*:*:*:*:*:*:*
1.13CPE matchmatch criteria
cpe:2.3:a:scadatec:procyon_scada:1.13:*:*:*:*:*:*:*

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
65.31%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: Procyon Core Server HMI Coreservice.exe Stack Buffer Overflow · Sep 8, 2011
ExploitDB: EDB-17827 · Sep 12, 2011
This CVE's current EPSS score of 0.6531 is in the 99th percentile among its peer group of 51,466 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

osvdb.org / 75371
secunia.com / advisories/45866
Vendor Advisory
securityreason.com / securityalert/8374
exchange.xforce.ibmcloud.com / vulnerabilities/69632
exploit-db.com / exploits/17827
Exploit
securityfocus.com / bid/49480
stratsec.net / Research/Advisories/Procyon-Core-Server-HMI-Remote-Stack-Overflow
uscert.gov / control_systems/pdf/ICSA-11-216-01.pdf
US Government Resource