CVE-2021-43939
highpriority · track · 35EPSS 0.006 · 50 %ileEURUUSEPSS · scored 2026-10-28
Elcomplus SmartPTT is vulnerable when a low-authenticated user can access higher level administration authorization by issuing requests directly to the desired endpoints.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationSmartPTT SCADAcisa_csaf_ot
Elcomplus has released an update to fix these vulnerabilities and recommends users upgrade to Version 2.3.4 or later.
https://drive.google.com/drive/folders/1ovX1IdMKtVDnrBcSbKkY40e57Ib2bIex
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-22-109-04Elcomplus SmartPTT SCADA2022-04-19icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could provide attackers a way to traverse the file system to access files or directories that are outside of the restricted directory; allow the upload or transfer files of dangerous types that can be automatically processed within the product's environment; allow an unauthorized access to an action or a resource; or allow a user to store dangerous data in a trusted database.
also known as (5)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2021-43939/cnnvd
- https://drive.google.com/drive/folders/1ovX1IdMKtVDnrBcSbKkY40e57Ib2bIexPatchcnnvd
- https://us-cert.cisa.gov/ics/advisories/icsa-22-109-04cnnvd
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-109-04cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2022042006cnnvd
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-109-04enisa_euvd
- https://www.cisa.gov/uscert/ics/advisories/icsa-22-109-04Third Party AdvisoryUS Government Resourcenvd
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