Schneider Electric StruxureWare SCADA Expert ClearSCADA Improper Restriction of Operations within the Bounds of a Memory Buffer
The PLC driver in ServerMain.exe in the Kepware KepServerEX 4 component in Schneider Electric StruxureWare SCADA Expert ClearSCADA 2010 R2 build 71.4165, 2010 R2.1 build 71.4325, 2010 R3 build 72.4560, 2010 R3.1 build 72.4644, 2013 R1 build 73.4729, 2013 R1.1 build 73.4832, 2013 R1.1a build 73.4903, 2013 R1.2 build 73.4955, and 2013 R2 build 74.5094 allows remote attackers to cause a denial of service (application crash) via a crafted OPF file (aka project file).
- Published
- Mar 14, 2014
- Updated
- Jun 16, 2026
- EPSS
- 1.5% · 73th percentile
- CWE
- CWE-119
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Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 27 / 40 · 6.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.5%
CNA vs NVD score
- NVD
- 6.8
- CNA · icscert
- 6.8
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| aveva | clearscada | cpe:2.3:a:aveva:clearscada |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- aveva clearscada2010
- aveva clearscada2013
Versions reported by the vendor
Affected version ranges reported by the assigning authority (icscert). Independent of NVD's CPE analysis and usually ahead of it.
Schneider Electric ClearSCADA
- 2010 R2 (build 71.4165), 2010 R2.1 (build 71.4325), 2010 R3 (build 72.4560), 2010 R3.1 (build 72.4644)affected
Schneider Electric SCADA Expert ClearSCADA
- 2013 R1 (build 73.4729), 2013 R1.1 (build 73.4832), 2013 R1.1a (build 73.4903), 2013 R1.2 (build 73.4955), 2013 R2 (build 74.5094)affected
Same product
aveva: all recordsOther highest-scoring records for the same primary product.
- CVE-2011-3143Use-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 and42Plan
- CVE-2017-6021In Schneider Electric ClearSCADA 2014 R1 (build 75.5210) and prior, 2014 R1.1 (build 75.5387) and prior, 2015 R1 (build 76.5648) and prior, 31Monitor
- CVE-2017-9962Schneider Electric's ClearSCADA versions released prior to August 2017 are susceptible to a memory allocation vulnerability, whereby malform30Monitor
- CVE-2014-5413Schneider Electric SCADA Expert ClearSCADA Cryptographic Issues20Monitor
- CVE-2014-5412Schneider Electric SCADA Expert ClearSCADA Improper Authentication20Monitor
- CVE-2011-3144Cross-site scripting (XSS) vulnerability in Control Microsystems ClearSCADA 2005, 2007, and 2009 before R2.3 and R1.4, as used in SCX before18Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- download.schneider-electric.com/files?p_Doc_Ref=SEVD%202014-024-01
- www.cisa.gov/news-events/ics-advisories/icsa-14-072-01
- ics-cert.us-cert.gov/advisories/ICSA-14-072-01
Vendor advisories and official records. Exploit/PoC links are deliberately left out.