CVE-2021-22720 in the critical feed json
A CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability exists in C-Bus Toolkit (V1.15.7 and…
published 5y ago modified 4mo ago also EUVD-2021-9855
- cvss
- 7.2
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 31.5%
- EPSS 31.5% chance of exploitation in 30 days, percentile 98%
- public exploits
- 0
- none known
Summary
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 restoring a project.
Is CVE-2021-22720 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
cisa ICSA-21-105-01 updated cvss 6.5
Schneider Electric C-Bus Toolkit
-
Schneider Electric Software, LLC C-Bus Toolkit <= 1.15.7affected: mitigation “Schneider Electric recommends users update to the latest version available. A reboot will be needed after the update.” updates.clipsal.com
From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf
Exploit prediction
31.48% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- tenable.com https://www.tenable.com/security/research/tra-2021-50 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- n/a C-Bus Toolkit V1.15.7 and prior
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
tenable.com
/security/research/tra-2021-50
exploit, third-party-advisory
-
download.schneider-electric.com
/files?p_Doc_Ref=SEVD-2021-103-01
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-450/
third-party-advisory, vdb-entry
Sources
- CVE List CVE-2021-22720
- NVD CVE-2021-22720
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