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Fencer Intel
critical 10.0

CVE-2011-3322 in the critical feed json

Core Server HMI Service (Coreservice.exe) in Scadatec Limited Procyon SCADA 1.06, and other versions before 1.14, allows remote attackers t…

published 2011-09-15 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3286

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
64.7%
EPSS 64.7% chance of exploitation in 30 days, percentile 99.2%
public exploits
2
Metasploit, Exploit-DB

Summary

Core Server HMI Service (Coreservice.exe) in Scadatec Limited Procyon SCADA 1.06, and other versions before 1.14, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long password to the Telnet (TCP/23) port, which triggers an out-of-bounds read or write, leading to a stack-based buffer overflow.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-11-216-01 updated cvss 10.0

Scadatec Limited Procyon Telnet Buffer Overflow

  • Scadatec Limited Procyon HMI <1.14
    affected: mitigation

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. First public exploit (Metasploit exploit/windows/scada/procyon_core_server)
  2. Published

Exploit prediction

64.65% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.