Skip to content
Fencer Intel
high 7.2

CVE-2011-3330 json

Buffer overflow in the UnitelWay Windows Device Driver, as used in Schneider Electric Unity Pro 6 and earlier, OPC Factory Server 3.34, Vij…

published 2011-11-04 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3294

cvss
7.2
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

Buffer overflow in the UnitelWay Windows Device Driver, as used in Schneider Electric Unity Pro 6 and earlier, OPC Factory Server 3.34, Vijeo Citect 7.20 and earlier, Telemecanique Driver Pack 2.6 and earlier, Monitor Pro 7.6 and earlier, and PL7 Pro 4.5 and earlier, allows local users, and possibly remote attackers, to execute arbitrary code via an unspecified system parameter.

Vendor advisories

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

cisa ICSA-11-277-01 updated cvss 7.2

Schneider Electric UnitelWay Buffer Overflow

  • Schneider Electric Monitor Pro Windows XP <=7.6 Schneider Electric OPC Factory Server Windows XP 3.34 Schneider Electric PL7 Pro Windows XP <=4.5 Schneider Electric Telemecanique Driver Pack Windows XP <=2.6 Schneider Electric Unity Pro Windows XP <=6 Schneider Electric Vijeo Citect Windows XP <=7.20
    affected: mitigation “Vijeo Citect users should contact Schneider Electric’s SCADA and MES Software Support Center.”

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

Exploit prediction

1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.2 AV:L/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.