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CVE-2021-22720

37
FAUCET Score

CVE-2021-22720 is a path traversal vulnerability (CWE-22) in Schneider Electric C-Bus Toolkit versions 1.15.7 and prior, which could lead to remote code execution during project restoration. This high-severity vulnerability (CVSS 7.2) can be exploited over the network with high privileges and no user interaction, potentially resulting in complete compromise of confidentiality, integrity, and availability. While no public exploits, Metasploit modules, or KEV entries exist, and community discussion is minimal, the FAUCET Risk Score of 66/100 indicates a notable risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.15.7CPE matchmatch criteria
cpe:2.3:a:schneider-electric:c-bus_toolkit:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
30.53%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.3053 is in the 97th percentile among its peer group of 5,538 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (3)

giteavendor investigatingvia llm_extracted
opensshvendor investigatingvia llm_extracted
railsvendor investigatingvia llm_extracted

Vendor Advisories (3)

opensshllm-openssh-b5bde17095dd7c66HIGH

Schneider Electric C-Gate Multiple Vulnerabilities

Nov 16, 2021
giteallm-gitea-61578693b5ba1589HIGH

Schneider Electric C-Gate Multiple Vulnerabilities

Nov 16, 2021
railsllm-rails-eda7cd4f59a98087HIGH

Schneider Electric C-Gate Multiple Vulnerabilities

Nov 16, 2021

References

download.schneider-electric.com / files
Vendor Advisory
tenable.com / security/research/tra-2021-50
ExploitThird Party Advisory
zerodayinitiative.com / advisories/ZDI-21-450
Third Party AdvisoryVDB Entry