CVE-2011-3143
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 se...
Affects 3 products across 2 vendors.
Broad class covering failures in managing system resources such as memory, file handles, and connections.
A use-after-free vulnerability exists in Control Microsystems ClearSCADA versions 2005, 2007, and 2009 before R2.3 and R1.4, which can be exploited by remote attackers to cause a denial of service (crash) and potentially execute arbitrary code. This vulnerability has a CVSS score of 10.0, indicating critical severity.
BSID: BS-2011-GLOBAL-088701-C • Model: Qwen/Qwen2.5-72B-Instruct-AWQ • Confidence: HIGH
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| CVE ID | CVE-2011-3143 |
|---|---|
| BSID | BS-2011-GLOBAL-088701-C BreachSpider Global ID |
| CVSS Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
| Published | 2011-08-16 |
| Last Modified | 2026-04-29 |
| ICS Relevance | 65% |
| Weakness (CWE) | |
| Verticals | |
| Source | NVD |
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.
Source: NIST NVD / MITRE CVE Database
The vulnerability can be triggered by sending specially crafted long strings to the affected ClearSCADA versions, leading to heap memory corruption. This can result in a crash or arbitrary code execution, allowing remote attackers to disrupt operations or gain control over the system.
Exploitation Likelihood: MEDIUM
| Vendor | Product | Fixed Version |
|---|---|---|
| Aveva | Clearscada | — |
| Schneider-Electric | Scx 67 | — |
| Schneider-Electric | Scx 68 | — |
No patch URL on record. Monitor vendor security advisories directly.
| CISA KEV | Not in KEV catalog |
|---|---|
| Public Exploit | Not confirmed |
| PoC Code | Not confirmed |
Implement network segmentation to isolate SCADA systems from untrusted networks. Apply strict access controls and monitor traffic for suspicious activity.
No reliable network detection signature exists for this vulnerability class — apply the compensating controls above and the vendor patch. SAGE only publishes a network rule when a concrete on-the-wire signature can be grounded in the advisory.
This CVE could allow unauthorized access to critical cyber assets, violating the requirement for secure access controls and monitoring.
This vulnerability impacts the integrity and availability of the control system, requiring robust security measures to prevent unauthorized access and ensure system reliability.
Virtual patch generated by CITED Relevance SAGE. Validate in isolated environment before production deployment. Compensating control only - does not replace vendor patch.
SAGE Enrichment Record — provenance & audit hash
| Model | Qwen/Qwen2.5-72B-Instruct-AWQ |
|---|---|
| Confidence | HIGH |
| Enriched At | 2026-05-24 |
| SHA-512 Audit Hash | d04b839f001a1311585a82b181c2df9a369ce1eec10ace2d6e5fae842dcdee5fd93a7b6853c8c6a6cb670db30fe92f31728a55a446325d974ed94311dd4a0a5a |
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