Missing authentication in C-Bus Toolkit v1.15.8 and prior
Priority LOW 39CWE-306Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.
Summary
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.
Why it matters now
EPSS 0.12083 96th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | C-Bus Toolkit v1.15.8 and prior | C-Bus Toolkit v1.15.8 and prior | — | No fix listed | CNA |
- C-Bus Toolkit v1.15.8 and prior Vendor— Affected C-Bus Toolkit v1.15.8 and prior Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:schneider-electric:c-bus_toolkit:*:*:*:*:*:*:*:* | before 1.15.9 | Vulnerable | Schneider Electric |
- cpe:2.3:a:schneider-electric:c-bus_toolkit:*:*:*:*:*:*:*:* Versions before 1.15.9 Vulnerable ·Schneider Electric
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-22784
- 2026-10-03 Alias added: GHSA-qr38-4cpx-4vc3
References
More Schneider Electric C-bus Toolkit vulnerabilities
- TI-2021-05600 Path traversal in C-Bus Toolkit V1.15.7 and prior CVSS 3.1HIGH 8.8
- TI-2021-05598 Path traversal in C-Bus Toolkit V1.15.7 and prior CVSS 3.1HIGH 8.8
- TI-2021-05599 Path traversal in C-Bus Toolkit V1.15.7 and prior CVSS 3.1HIGH 7.8
- TI-2021-05601 Path traversal in C-Bus Toolkit V1.15.7 and prior CVSS 3.1HIGH 7.2
- TI-2023-04973 Improper privilege management in Schneider Electric C-Bus Toolkit CVSS 3.1CRITICAL 9.8
- TI-2021-05629 Path traversal in C-Bus Toolkit , C-Gate Server CVSS 3.1HIGH 8.8
Sources
- CVE-2021-22784 · CVE Program
- CVE-2021-22784 · NVD
- FIRST EPSS
- GHSA-qr38-4cpx-4vc3 · GitHub Advisory Database · CC BY 4.0
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