How severe is CVE-2021-22784?

CVE-2021-22784 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-22784 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22784?

CVE-2021-22784 affects Schneider-electric C-bus Toolkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22784?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-22784 published?

CVE-2021-22784 was published on 2021-07-21 and last updated on 2026-06-17.

CVE-2021-22784

CVE-2021-22784 is a medium-severity vulnerability in Schneider-electric C-bus Toolkit with a CVSS 3.x base score of 5.7. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-306.

Key facts

Severity: Medium (CVSS 3.x base score 5.7)
CVSS v2: 3.5
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-306
Affected product: Schneider-electric C-bus Toolkit
Published: 2021-07-21
Last modified: 2026-06-17

Description

A CWE-306: Missing Authentication for Critical Function vulnerability exists in C-Bus Toolkit v1.15.8 and prior that could allow an attacker to use a crafted webpage to obtain remote access to the system.

Frequently asked questions

What is CVE-2021-22784?: A CWE-306: Missing Authentication for Critical Function vulnerability exists in C-Bus Toolkit v1.15.8 and prior that could allow an attacker to use a crafted webpage to obtain remote access to the system.
How severe is CVE-2021-22784?: CVE-2021-22784 has a CVSS 3.x base score of 5.7, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-22784 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22784?: CVE-2021-22784 affects Schneider-electric C-bus Toolkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22784?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-22784 published?: CVE-2021-22784 was published on 2021-07-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:schneider-electric:c-bus_toolkit:*:*:*:*:*:*:*:*

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CVE-2021-22748 — High (CVSS 8.8): A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists that…
CVE-2021-22719 — High (CVSS 8.8): A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus…
CVE-2021-22717 — High (CVSS 8.8): A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus…
CVE-2021-22718 — High (CVSS 7.8): A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus…
CVE-2021-22716 — High (CVSS 7.8): A CWE-732: Incorrect Permission Assignment for Critical Resource vulnerability exists that could allow remote code…

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