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Fencer Intel
critical 9.3

CVE-2011-4055 json

Buffer overflow in the WebClient ActiveX control in Siemens Tecnomatix FactoryLink 6.6.1 (aka 6.6 SP1), 7.5.217 (aka 7.5 SP2), and 8.0.2.54…

published 2012-01-08 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4007

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.6%
EPSS 4.6% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Buffer overflow in the WebClient ActiveX control in Siemens Tecnomatix FactoryLink 6.6.1 (aka 6.6 SP1), 7.5.217 (aka 7.5 SP2), and 8.0.2.54 allows remote attackers to execute arbitrary code via a long string in a parameter associated with the location URL.

Patch / fix

Vendor advisories

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

cisa ICSA-11-343-01 updated cvss 9.3

Siemens FactoryLink Multiple ActiveX Vulnerabilities

  • Siemens Tecnomatix FactoryLink V8.0.2.54, V7.5.217_V7.5_SP2, V6.6.1_V6.6_SP1
    affected: mitigation “Customers of vulnerable versions of Siemens Tecnomatix FactoryLink should deploy the Siemens patch. (http://www.usdata.com/sea/factorylink/en/p_nav5.asp)”

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

4.56% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/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.