How severe is CVE-2021-22751?

CVE-2021-22751 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-2021-22751 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22751?

CVE-2021-22751 affects Schneider-electric Interactive Graphical Scada System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22751?

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-2021-22751 published?

CVE-2021-22751 was published on 2021-06-11 and last updated on 2026-06-17.

CVE-2021-22751

CVE-2021-22751 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Schneider-electric Interactive Graphical Scada System
Published: 2021-06-11
Last modified: 2026-06-17

Description

A CWE-787: Out-of-bounds write vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could result in disclosure of information or execution of arbitrary code due to lack of input validation, when a malicious CGF (Configuration Group File) file is imported to IGSS Definition.

Frequently asked questions

What is CVE-2021-22751?: A CWE-787: Out-of-bounds write vulnerability exists inIGSS Definition (Def.exe) V15.0.0.21140 and prior that could result in disclosure of information or execution of arbitrary code due to lack of input validation, when a malicious CGF (Configuration Group File) file is imported to IGSS Definition.
How severe is CVE-2021-22751?: CVE-2021-22751 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-2021-22751 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22751?: CVE-2021-22751 affects Schneider-electric Interactive Graphical Scada System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22751?: 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-2021-22751 published?: CVE-2021-22751 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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