How severe is CVE-2021-22759?

CVE-2021-22759 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22759 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22759?

CVE-2021-22759 affects Schneider-electric Interactive Graphical Scada System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22759?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-22759 published?

CVE-2021-22759 was published on 2021-06-11 and last updated on 2026-06-17.

CVE-2021-22759

CVE-2021-22759 is a high-severity vulnerability in Schneider-electric Interactive Graphical Scada System with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Schneider-electric Interactive Graphical Scada System
Published: 2021-06-11
Last modified: 2026-06-17

Description

A CWE-416: Use after free vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could result in loss of data or remote code execution due to use of unchecked input data, when a malicious CGF file is imported to IGSS Definition.

Frequently asked questions

What is CVE-2021-22759?: A CWE-416: Use after free vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could result in loss of data or remote code execution due to use of unchecked input data, when a malicious CGF file is imported to IGSS Definition.
How severe is CVE-2021-22759?: CVE-2021-22759 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22759 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22759?: CVE-2021-22759 affects Schneider-electric Interactive Graphical Scada System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22759?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-22759 published?: CVE-2021-22759 was published on 2021-06-11 and last updated on 2026-06-17.

References

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-159-01

Affected products (1)

cpe:2.3:a:schneider-electric:interactive_graphical_scada_system:*:*:*:*:*:*:*:*

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