CVE-2011-3143

no score yetEPSS 7.5%

Use-after-free vulnerability in Control Microsystems ClearSCADA 2005, 2007, and 2009 before R2.3 and R1.4, as used in SCX before 67 R4.5 and 68 R3.9, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified long strings that trigger heap memory corruption.

EPSS: 7.5% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
CWE: CWE-399
Published: 2011-08-16
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

aveva:clearscada
schneider-electric:scx_67
schneider-electric:scx_68

References

http://secunia.com/advisories/44955
http://www.digitalbond.com/scadapedia/vulnerability-notes/heap-overflow-vulnerability/
http://www.osvdb.org/72989
http://www.securityfocus.com/bid/46312
http://www.us-cert.gov/control_systems/pdf/ICSA-10-314-01.pdf

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