CVE-2011-3143
HIGH · CVSS 10.0EPSS 7.5%EU EUVD
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.
Key facts
- CVSS score
- 10.0 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-399
- EPSS score
- 7.5% (95th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-3111)
- Published
- August 16, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-3111 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- aveva / clearscada
- aveva / clearscada
- aveva / clearscada
- schneider-electric / scx 67
- schneider-electric / scx 68
References
- http://secunia.com/advisories/44955(Third Party Advisory)
- http://www.digitalbond.com/scadapedia/vulnerability-notes/heap-overflow-vulnerability/(Broken Link, Third Party Advisory)
- http://www.osvdb.org/72989(Broken Link)
- http://www.securityfocus.com/bid/46312(Third Party Advisory, VDB Entry)
- http://www.us-cert.gov/control_systems/pdf/ICSA-10-314-01.pdf(Patch, Third Party Advisory, US Government Resource)
- http://www.us-cert.gov/control_systems/pdf/ICSA-10-314-01A.pdf(Patch, Third Party Advisory, US Government Resource)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain