CVE-2021-43555

7.8 highEPSS 38%

High (7.8) in myscada mydesigner. EPSS 38% chance of exploitation in the next 30 days.

mySCADA myDESIGNER Versions 8.20.0 and prior fails to properly validate contents of an imported project file, which may make the product vulnerable to a path traversal payload. This vulnerability may allow an attacker to plant files on the file system in arbitrary locations or overwrite existing files, resulting in remote code execution.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 38% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWEs: CWE-22, CWE-23
Published: 2021-11-19
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

myscada:mydesigner

References

https://us-cert.cisa.gov/ics/advisories/icsa-21-313-04
https://us-cert.cisa.gov/ics/advisories/icsa-21-313-04

Check your stack JSON