Authenticated CLI denial of service via forced disconnect
Published Dec 13, 2022 · Updated Apr 21, 2025
Denial of service in Siemens SCALANCE SC-600 before 3.0 and W-700 before 2.0.0 allows remote authenticated users to hang the CLI. The command-line session teardown mishandles subsequent commands after an SSH connection is forcibly closed, leaving SSH and serial CLI interfaces unresponsive. A valid account and an SSH session are required; successful exploitation interrupts device administration without affecting confidentiality or integrity.
Summary
What happened
Denial of service in Siemens SCALANCE SC-600 before 3.0 and W-700 before 2.0.0 allows remote authenticated users to hang the CLI. The command-line session teardown mishandles subsequent commands after an SSH connection is forcibly closed, leaving SSH and serial CLI interfaces unresponsive. A valid account and an SSH session are required; successful exploitation interrupts device administration without affecting confidentiality or integrity.
The record
- CVE
- CVE-2022-46144
- Published
- Dec 13, 2022
- Updated
- Apr 21, 2025
- Vendor
- Siemens
- Product
- SCALANCE SC632-2C
- Classifications
- CWE-664, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 13, 2022CVE publishedPublication date reported by the CVE source.
- Apr 21, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <V2.3
- Affected versionversion=V2.3 <V3.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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