Unauthenticated service crash via invalid address read
Published May 15, 2023 · Updated Jan 23, 2025
Improper input validation in CODESYS CMPDevice before 3.5.19.0 or 4.8.0.0 allows remote attackers to crash affected services. CMPDevice reads an address supplied through the CODESYS network protocol without adequately validating that the address is valid, causing an invalid memory access. No credentials or user interaction are required; successful exploitation interrupts the affected runtime, gateway, development, or HMI service.
Summary
What happened
Improper input validation in CODESYS CMPDevice before 3.5.19.0 or 4.8.0.0 allows remote attackers to crash affected services. CMPDevice reads an address supplied through the CODESYS network protocol without adequately validating that the address is valid, causing an invalid memory access. No credentials or user interaction are required; successful exploitation interrupts the affected runtime, gateway, development, or HMI service.
The record
- CVE
- CVE-2022-47391
- Published
- May 15, 2023
- Updated
- Jan 23, 2025
- Vendor
- CODESYS GmbH
- Product
- CODESYS Control Runtime System Toolkit
- Classifications
- CWE-20, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 15, 2023CVE publishedPublication date reported by the CVE source.
- Jan 23, 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=V0.0.0.0 <V3.5.19.0
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
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Technologies
Your stack
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Your stack
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