Code execution via unchecked C5P data copy
Published Apr 12, 2022 · Updated Apr 16, 2025
Heap-based buffer overflow in Fuji Electric Alpha5 before 4.3 allows context-dependent attackers to execute code through a crafted C5P file. The Server Operator module copies user-supplied C5P data into a heap buffer without first validating its length. Exploitation requires the target to open a malicious file or visit a malicious page, and code runs in the context of the current process.
Summary
What happened
Heap-based buffer overflow in Fuji Electric Alpha5 before 4.3 allows context-dependent attackers to execute code through a crafted C5P file. The Server Operator module copies user-supplied C5P data into a heap buffer without first validating its length. Exploitation requires the target to open a malicious file or visit a malicious page, and code runs in the context of the current process.
The record
- CVE
- CVE-2022-21214
- Published
- Apr 12, 2022
- Updated
- Apr 16, 2025
- Vendor
- Fuji Electric
- Product
- ALPHA5
- Classifications
- CWE-122, T1204.002, T1203
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 12, 2022CVE publishedPublication date reported by the CVE source.
- Apr 16, 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=All <4.3
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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