CVE-2020-7484
No exploitation reported by the sources we read.
- Published2020-04-16
- Fixed in4.13.0
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
**VERSION NOT SUPPORTED WHEN ASSIGNED** A vulnerability with the former 'password' feature could allow a denial of service attack if the user is not following documented guidelines pertaining to dedicated TriStation connection and key-switch protection. This vulnerability was discovered and remediated in versions v4.9.1 and v4.10.1 on May 30, 2013. This feature is not present in version v4.9.1 and v4.10.1 through current. Therefore, the vulnerability is not present in these versions.
Timeline
dates in UTC- 2020-04-1619:15CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-7484?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-7484?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 4.13 | ≥ 1.0, < 4.13.0 | 4.13.0 | NVD |
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Distribution builds and vendor advisories
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
Schneider Electric Triconex TriStation and Tricon Communication Module
TriStation 1131: v1.0.0 to v4.9.0 v4.10.0 and 4.12.0 operating on Windows NT Windows XP or Windows 7 · Tricon Communications Module (TCM) Models 4351 4352 4351A/B and 4352A/B installed in Tricon: v10.0 to v10.5.3 systems
Fix
- Update Schneider-electric tristation 1131 to 4.13.0
- Mitigation from the vendor CISA ICSA-20-205-01 · 2 productsSchneider Electric released TriStation v4.9.1 and v4.10.1 on May 30, 2013 and 4.13.0 on January 26, 2015 to address these issues. Tricon v10.5.0 was released on August 13, 2009 and v10.5.4 on February 2, 2012 to address the issues.
- Mitigation from the vendor CISA ICSA-20-205-01 · 2 productsSchneider Electric notified customers of updated product availability via direct-to-customer notification and fixed versions of these offers are available for download here.
- Mitigation from the vendor CISA ICSA-20-205-01 · 2 productsLocate control and safety system networks and remote devices behind firewalls and isolate them from the business network.
- Mitigation from the vendor CISA ICSA-20-205-01 · 2 productsInstall physical controls so no unauthorized personnel can access industrial control and safety systems, components, peripheral equipment, and networks.
- Mitigation from the vendor CISA ICSA-20-205-01 · 2 productsPlace all controllers in locked cabinets and never leave them in the “Program” mode.
- Mitigation from the vendor CISA ICSA-20-205-01 · 2 productsScan all methods of mobile data exchange with the isolated network, such as CDs, USB drives, etc., before use in the terminals or nodes connected to these networks.
Advisories and patches
- www.se.comVendor Advisory
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.5read 2026-10-23
- NVDCVSS 2.04.3read 2026-10-23
- FIRST EPSSEPSS score1.3 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Published
- 2020-04-16
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2020-7484?
Is CVE-2020-7484 actively exploited?
What is the CVSS score for CVE-2020-7484?
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