How severe is CVE-2021-22717?

CVE-2021-22717 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22717 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 39% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22717?

CVE-2021-22717 affects Schneider-electric C-bus Toolkit. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-22717?

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-2021-22717 published?

CVE-2021-22717 was published on 2021-04-13 and last updated on 2026-06-17.

CVE-2021-22717

CVE-2021-22717 is a high-severity vulnerability in Schneider-electric C-bus Toolkit with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 39% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 39% (98th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Schneider-electric C-bus Toolkit
Published: 2021-04-13
Last modified: 2026-06-17

Description

A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus Toolkit (V1.15.7 and prior) that could allow a remote code execution when processing config files.

Frequently asked questions

What is CVE-2021-22717?: A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus Toolkit (V1.15.7 and prior) that could allow a remote code execution when processing config files.
How severe is CVE-2021-22717?: CVE-2021-22717 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22717 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 39% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22717?: CVE-2021-22717 affects Schneider-electric C-bus Toolkit. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-22717?: 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-2021-22717 published?: CVE-2021-22717 was published on 2021-04-13 and last updated on 2026-06-17.

References

Affected products (1)

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

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