Authenticated code execution via CmpAppForce stack overwrite
Published May 15, 2023 · Updated Mar 5, 2025
Stack-based buffer overflow in CmpAppForce in affected CODESYS products allows remote authenticated users to execute arbitrary code. Crafted CODESYS protocol requests make CmpAppForce write attacker-controlled data beyond a stack buffer. A valid product login is required; successful exploitation can also overwrite memory or crash the controller or simulation runtime.
Summary
What happened
Stack-based buffer overflow in CmpAppForce in affected CODESYS products allows remote authenticated users to execute arbitrary code. Crafted CODESYS protocol requests make CmpAppForce write attacker-controlled data beyond a stack buffer. A valid product login is required; successful exploitation can also overwrite memory or crash the controller or simulation runtime.
The record
- CVE
- CVE-2022-47385
- Published
- May 15, 2023
- Updated
- Mar 5, 2025
- Vendor
- CODESYS GmbH
- Product
- CODESYS Control Runtime System Toolkit
- Classifications
- CWE-121, T0866
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 15, 2023CVE publishedPublication date reported by the CVE source.
- Mar 5, 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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
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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