CVE-2021-41578
mySCADA myDESIGNER 8.20.0 and below allows Directory Traversal attacks when importing project files.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 14.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
Description
mySCADA myDESIGNER 8.20.0 and below allows Directory Traversal attacks when importing project files. If an attacker can trick a victim into importing a malicious mep file, then they gain the ability to write arbitrary files to OS locations where the user has permission. This would typically lead to code execution.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 14.48% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- myscada/mydesigner
- Source
- cve@mitre.org
EPSS moved from 14.5% on 30 October 2026 to 14.5% on 3 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- https://github.com/jacob-baines/vuln_disclosure/blob/main/vuln_2021_05.txtThird Party Advisory
- https://github.com/jacob-baines/vuln_disclosure/blob/main/vuln_2021_05.txtThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.