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Fencer Vulns
high 7.8

CVE-2021-22662 json

A use after free issue has been identified in Fatek FvDesigner Version 1.5.76 and prior in the way the application processes project files,…

published 2021-03-03 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9798

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

A use after free issue has been identified in Fatek FvDesigner Version 1.5.76 and prior in the way the application processes project files, allowing an attacker to craft a special project file that may permit arbitrary code execution.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-056-02 updated cvss 7.8

FATEK Automation FvDesigner

  • FATEK Automation FvDesigner <= 1.5.76
    affected: mitigation “FATEK Automation is aware of the issue and is currently developing a solution. For more information, contact FATEK via email or by phone: +886-2-2808-2192”

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

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
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

  • n/a Fatek FvDesigner

Classification

Weakness

References

Sources

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.