CVE-2021-38438 json
FATEK Automation WinProladder
published 2021-10-18 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24890
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
A use after free vulnerability in FATEK Automation WinProladder versions 3.30 and prior may be exploited when a valid user opens a malformed project file, which may allow arbitrary code execution.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-21-280-06 updated cvss 7.8
FATEK Automation WinProladder
-
FATEK Automation WinProladder <= 3.30affected: mitigation “Do not click web links or open unsolicited attachments in email messages.” us-cert.cisa.gov
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- FATEK Automation WinProladder
Classification
- Weakness
-
- CWE-416 Use After Free
References
-
us-cert.cisa.gov
/ics/advisories/icsa-21-280-06
third-party-advisory, us-government-resource
Sources
- CVE List CVE-2021-38438
- NVD CVE-2021-38438
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.