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Fencer Vulns
high 7.8

CVE-2021-22709 json

A CWE-119:Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Interactive Graphical SCADA Syste…

published 2021-03-11 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-9844

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.2%
EPSS 2.2% chance of exploitation in 30 days, percentile 82%
public exploits
0
none known

Summary

A CWE-119:Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability exists in Interactive Graphical SCADA System (IGSS) Definition (Def.exe) V15.0.0.21041 and prior, which could result in loss of data or remote code execution when malicious CGF (Configuration Group File) file is imported to IGSS Definition.

Patch / fix

Vendor advisories

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

cisa ICSA-21-070-01 updated cvss 7.8

Schneider Electric IGSS SCADA Software

  • Schneider Electric Software, LLC IGSS Definition (Def.exe) <= 15.0.0.21041
    affected: mitigation “Avoid importing CGF files from untrusted sources.” igss.schneider-electric.com

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

2.22% chance of exploitation in the next 30 days, higher than 82% 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 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • n/a Interactive Graphical SCADA System (IGSS) Definition (Def.exe) V15.0.0.21041 and prior

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.