How severe is CVE-2021-22826?

CVE-2021-22826 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22826 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22826?

CVE-2021-22826 affects Schneider-electric Ecostruxure Power Monitoring Expert. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22826?

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-2021-22826 published?

CVE-2021-22826 was published on 2022-01-28 and last updated on 2026-06-17.

CVE-2021-22826

CVE-2021-22826 is a high-severity vulnerability in Schneider-electric Ecostruxure Power Monitoring Expert with a CVSS 3.x base score of 8.8. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Schneider-electric Ecostruxure Power Monitoring Expert
Published: 2022-01-28
Last modified: 2026-06-17

Description

A CWE-20: Improper Input Validation vulnerability exists that could cause arbitrary code execution when the user visits a page containing the injected payload. This CVE is unique from CVE-2021-22827. Affected Product: EcoStruxure� Power Monitoring Expert 9.0 and prior versions

Frequently asked questions

What is CVE-2021-22826?: A CWE-20: Improper Input Validation vulnerability exists that could cause arbitrary code execution when the user visits a page containing the injected payload. This CVE is unique from CVE-2021-22827. Affected Product: EcoStruxure� Power Monitoring Expert 9.0 and prior versions
How severe is CVE-2021-22826?: CVE-2021-22826 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22826 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22826?: CVE-2021-22826 affects Schneider-electric Ecostruxure Power Monitoring Expert. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22826?: 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-2021-22826 published?: CVE-2021-22826 was published on 2022-01-28 and last updated on 2026-06-17.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-348-03

Affected products (1)

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

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