Schneider Electric OPC Factory Server Buffer Overflow
Published Apr 4, 2014
7.8
HIGHCVSS 2.0
EPSS 2.47%
Description
Multiple buffer overflows in the OPC Automation 2.0 Server Object ActiveX control in Schneider Electric OPC Factory Server (OFS) TLXCDSUOFS33 3.5 and earlier, TLXCDSTOFS33 3.5 and earlier, TLXCDLUOFS33 3.5 and earlier, TLXCDLTOFS33 3.5 and earlier, and TLXCDLFOFS33 3.5 and earlier allow remote attackers to cause a denial of service via long arguments to unspecified functions.
Affected products
-
- Version 0StatusaffectedConstraints<=TLXCDLFOFS33 – V3.5
- Version 0StatusaffectedConstraints<=TLXCDLTOFS33 – V3.5
- Version 0StatusaffectedConstraints<=TLXCDLUOFS33 – V3.5
- Version 0StatusaffectedConstraints<=TLXCDSTOFS33 – V3.5
- Version 0StatusaffectedConstraints<=TLXCDSUOFS33 – V3.5
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Schneider Electric | OPC Factory Server (OFS) | unaffected |
|
- ≤ 3.35
- ≤ 3.35
- ≤ 3.35
- ≤ 3.35
- ≤ 3.35
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
Schneider Electric has developed a patch to resolve this issue. In order to patch the installation in the field, install OFS V3.5SP1, available on Schneider Electric’s web site at the following URL: http://www2.schneider-electric.com/sites/corporate/en/support/cybersecurity/cybersecurity.page
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
1 other source (CVE.org) ▾
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.47% (0.02471) | 83.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.47% (0.02471) | 82.38th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.47% (0.00466) | 62.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00239) | 62.83th | v3 (v2023.03.01) |
| Jun 20, 2024 | 0.24% (0.00239) | 62.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00239) | 60.14th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (4)
- http://ics-cert.us-cert.gov/advisories/ICSA-14-093-01 US Government Resource
- http://www.schneider-electric.com/corporate/en/support/cybersecurity/viewer-news.page?c_filepath=/templatedata/Content/News/data/en/local/cybersecurity/general_information/2014/03/20140325_vulnerability_disclosure_opc_factory_server.xml x_refsource_CONFIRMVendor Advisory
- http://www2.schneider-electric.com/sites/corporate/en/support/cybersecurity/cybersecurity.page
- https://www.cisa.gov/news-events/ics-advisories/icsa-14-093-01
Change history (0)
No recorded changes yet.